Home / 1,737.20-2,397.16-991.14

Finding the Fourth Proportional to 1,737.20, 2,397.16 and 991.14

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Solution

The fourth proportional to 1,737.20, 2,397.16 and 991.14 is: 1,367.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,737.20 : 2,397.16 = 991.14 : x
  2. Step 2: Convert to fraction form
    1,737.20/2,397.16 = 991.14/x
  3. Step 3: Cross multiply
    1,737.20x = 2,397.16 × 991.14
  4. Step 4: Simplify right side
    1,737.20x = 2,375,921.16
  5. Step 5: Solve for x
    x = 2,375,921.16/1,737.20
  6. Step 6: Final answer
    x = 1,367.67

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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.