Home / 6,119.06-8,445.66-3,990.92

Finding the Fourth Proportional to 6,119.06, 8,445.66 and 3,990.92

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Solution

The fourth proportional to 6,119.06, 8,445.66 and 3,990.92 is: 5,508.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,119.06 : 8,445.66 = 3,990.92 : x
  2. Step 2: Convert to fraction form
    6,119.06/8,445.66 = 3,990.92/x
  3. Step 3: Cross multiply
    6,119.06x = 8,445.66 × 3,990.92
  4. Step 4: Simplify right side
    6,119.06x = 33,705,953.41
  5. Step 5: Solve for x
    x = 33,705,953.41/6,119.06
  6. Step 6: Final answer
    x = 5,508.35

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Double scale
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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.