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Finding the Fourth Proportional to 2,565.96, 3,541.02 and 1,387.03

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Solution

The fourth proportional to 2,565.96, 3,541.02 and 1,387.03 is: 1,914.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,565.96 : 3,541.02 = 1,387.03 : x
  2. Step 2: Convert to fraction form
    2,565.96/3,541.02 = 1,387.03/x
  3. Step 3: Cross multiply
    2,565.96x = 3,541.02 × 1,387.03
  4. Step 4: Simplify right side
    2,565.96x = 4,911,500.97
  5. Step 5: Solve for x
    x = 4,911,500.97/2,565.96
  6. Step 6: Final answer
    x = 1,914.10

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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.