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Finding the Fourth Proportional to 6,132.71, 8,461.87 and 3,774.40

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Solution

The fourth proportional to 6,132.71, 8,461.87 and 3,774.40 is: 5,207.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,132.71 : 8,461.87 = 3,774.40 : x
  2. Step 2: Convert to fraction form
    6,132.71/8,461.87 = 3,774.40/x
  3. Step 3: Cross multiply
    6,132.71x = 8,461.87 × 3,774.40
  4. Step 4: Simplify right side
    6,132.71x = 31,938,451.54
  5. Step 5: Solve for x
    x = 31,938,451.54/6,132.71
  6. Step 6: Final answer
    x = 5,207.88

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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.