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Finding the Fourth Proportional to 6,841.06, 9,440.54 and 3,856.90

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Solution

The fourth proportional to 6,841.06, 9,440.54 and 3,856.90 is: 5,322.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,841.06 : 9,440.54 = 3,856.90 : x
  2. Step 2: Convert to fraction form
    6,841.06/9,440.54 = 3,856.90/x
  3. Step 3: Cross multiply
    6,841.06x = 9,440.54 × 3,856.90
  4. Step 4: Simplify right side
    6,841.06x = 36,411,218.73
  5. Step 5: Solve for x
    x = 36,411,218.73/6,841.06
  6. Step 6: Final answer
    x = 5,322.45

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Find fourth proportional to 3,420.53, 4,720.27 and 1,928.45
Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.