Home / 1,529.11-2,294.31-749.80

Finding the Fourth Proportional to 1,529.11, 2,294.31 and 749.80

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Solution

The fourth proportional to 1,529.11, 2,294.31 and 749.80 is: 1,125.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.11 : 2,294.31 = 749.80 : x
  2. Step 2: Convert to fraction form
    1,529.11/2,294.31 = 749.80/x
  3. Step 3: Cross multiply
    1,529.11x = 2,294.31 × 749.80
  4. Step 4: Simplify right side
    1,529.11x = 1,720,273.64
  5. Step 5: Solve for x
    x = 1,720,273.64/1,529.11
  6. Step 6: Final answer
    x = 1,125.02

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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.