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Finding the Fourth Proportional to 2,487.53, 3,728.22 and 2,179.98

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Solution

The fourth proportional to 2,487.53, 3,728.22 and 2,179.98 is: 3,267.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.53 : 3,728.22 = 2,179.98 : x
  2. Step 2: Convert to fraction form
    2,487.53/3,728.22 = 2,179.98/x
  3. Step 3: Cross multiply
    2,487.53x = 3,728.22 × 2,179.98
  4. Step 4: Simplify right side
    2,487.53x = 8,127,445.04
  5. Step 5: Solve for x
    x = 8,127,445.04/2,487.53
  6. Step 6: Final answer
    x = 3,267.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.