Home / 4,721.25-7,082.28-1,434.38

Finding the Fourth Proportional to 4,721.25, 7,082.28 and 1,434.38

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Solution

The fourth proportional to 4,721.25, 7,082.28 and 1,434.38 is: 2,151.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.25 : 7,082.28 = 1,434.38 : x
  2. Step 2: Convert to fraction form
    4,721.25/7,082.28 = 1,434.38/x
  3. Step 3: Cross multiply
    4,721.25x = 7,082.28 × 1,434.38
  4. Step 4: Simplify right side
    4,721.25x = 10,158,645.38
  5. Step 5: Solve for x
    x = 10,158,645.38/4,721.25
  6. Step 6: Final answer
    x = 2,151.68

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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.