Home / 1,517.70-2,092.32-1,119.72

Finding the Fourth Proportional to 1,517.70, 2,092.32 and 1,119.72

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Solution

The fourth proportional to 1,517.70, 2,092.32 and 1,119.72 is: 1,543.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.70 : 2,092.32 = 1,119.72 : x
  2. Step 2: Convert to fraction form
    1,517.70/2,092.32 = 1,119.72/x
  3. Step 3: Cross multiply
    1,517.70x = 2,092.32 × 1,119.72
  4. Step 4: Simplify right side
    1,517.70x = 2,342,812.55
  5. Step 5: Solve for x
    x = 2,342,812.55/1,517.70
  6. Step 6: Final answer
    x = 1,543.66

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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.