Home / 1,553.45-2,330.14-731.27

Finding the Fourth Proportional to 1,553.45, 2,330.14 and 731.27

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Solution

The fourth proportional to 1,553.45, 2,330.14 and 731.27 is: 1,096.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.45 : 2,330.14 = 731.27 : x
  2. Step 2: Convert to fraction form
    1,553.45/2,330.14 = 731.27/x
  3. Step 3: Cross multiply
    1,553.45x = 2,330.14 × 731.27
  4. Step 4: Simplify right side
    1,553.45x = 1,703,961.48
  5. Step 5: Solve for x
    x = 1,703,961.48/1,553.45
  6. Step 6: Final answer
    x = 1,096.89

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1.5x scale

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.