Home / 1,517.32-2,281.02-1,245.43

Finding the Fourth Proportional to 1,517.32, 2,281.02 and 1,245.43

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Solution

The fourth proportional to 1,517.32, 2,281.02 and 1,245.43 is: 1,872.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.32 : 2,281.02 = 1,245.43 : x
  2. Step 2: Convert to fraction form
    1,517.32/2,281.02 = 1,245.43/x
  3. Step 3: Cross multiply
    1,517.32x = 2,281.02 × 1,245.43
  4. Step 4: Simplify right side
    1,517.32x = 2,840,850.74
  5. Step 5: Solve for x
    x = 2,840,850.74/1,517.32
  6. Step 6: Final answer
    x = 1,872.28

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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.