Home / 2,487.12-3,432.10-1,492.20

Finding the Fourth Proportional to 2,487.12, 3,432.10 and 1,492.20

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Solution

The fourth proportional to 2,487.12, 3,432.10 and 1,492.20 is: 2,059.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.12 : 3,432.10 = 1,492.20 : x
  2. Step 2: Convert to fraction form
    2,487.12/3,432.10 = 1,492.20/x
  3. Step 3: Cross multiply
    2,487.12x = 3,432.10 × 1,492.20
  4. Step 4: Simplify right side
    2,487.12x = 5,121,379.62
  5. Step 5: Solve for x
    x = 5,121,379.62/2,487.12
  6. Step 6: Final answer
    x = 2,059.16

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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.