Home / 1,529.29-2,293.16-748.12

Finding the Fourth Proportional to 1,529.29, 2,293.16 and 748.12

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Solution

The fourth proportional to 1,529.29, 2,293.16 and 748.12 is: 1,121.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.29 : 2,293.16 = 748.12 : x
  2. Step 2: Convert to fraction form
    1,529.29/2,293.16 = 748.12/x
  3. Step 3: Cross multiply
    1,529.29x = 2,293.16 × 748.12
  4. Step 4: Simplify right side
    1,529.29x = 1,715,558.86
  5. Step 5: Solve for x
    x = 1,715,558.86/1,529.29
  6. Step 6: Final answer
    x = 1,121.80

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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.