Home / 1,553.19-2,329.83-731.85

Finding the Fourth Proportional to 1,553.19, 2,329.83 and 731.85

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Solution

The fourth proportional to 1,553.19, 2,329.83 and 731.85 is: 1,097.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.19 : 2,329.83 = 731.85 : x
  2. Step 2: Convert to fraction form
    1,553.19/2,329.83 = 731.85/x
  3. Step 3: Cross multiply
    1,553.19x = 2,329.83 × 731.85
  4. Step 4: Simplify right side
    1,553.19x = 1,705,086.09
  5. Step 5: Solve for x
    x = 1,705,086.09/1,553.19
  6. Step 6: Final answer
    x = 1,097.80

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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.