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Finding the Fourth Proportional to 4,387.92, 6,053.16 and 4,087.20

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Solution

The fourth proportional to 4,387.92, 6,053.16 and 4,087.20 is: 5,638.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,387.92 : 6,053.16 = 4,087.20 : x
  2. Step 2: Convert to fraction form
    4,387.92/6,053.16 = 4,087.20/x
  3. Step 3: Cross multiply
    4,387.92x = 6,053.16 × 4,087.20
  4. Step 4: Simplify right side
    4,387.92x = 24,740,475.55
  5. Step 5: Solve for x
    x = 24,740,475.55/4,387.92
  6. Step 6: Final answer
    x = 5,638.32

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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.