Home / 2,487.84-3,432.35-1,543.29

Finding the Fourth Proportional to 2,487.84, 3,432.35 and 1,543.29

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Solution

The fourth proportional to 2,487.84, 3,432.35 and 1,543.29 is: 2,129.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.84 : 3,432.35 = 1,543.29 : x
  2. Step 2: Convert to fraction form
    2,487.84/3,432.35 = 1,543.29/x
  3. Step 3: Cross multiply
    2,487.84x = 3,432.35 × 1,543.29
  4. Step 4: Simplify right side
    2,487.84x = 5,297,098.08
  5. Step 5: Solve for x
    x = 5,297,098.08/2,487.84
  6. Step 6: Final answer
    x = 2,129.20

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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.