Home / 6,911.22-10,366.84-1,981.16

Finding the Fourth Proportional to 6,911.22, 10,366.84 and 1,981.16

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Solution

The fourth proportional to 6,911.22, 10,366.84 and 1,981.16 is: 2,971.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,911.22 : 10,366.84 = 1,981.16 : x
  2. Step 2: Convert to fraction form
    6,911.22/10,366.84 = 1,981.16/x
  3. Step 3: Cross multiply
    6,911.22x = 10,366.84 × 1,981.16
  4. Step 4: Simplify right side
    6,911.22x = 20,538,368.73
  5. Step 5: Solve for x
    x = 20,538,368.73/6,911.22
  6. Step 6: Final answer
    x = 2,971.74

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.