Home / 1,310.27-1,965.24-488.43

Finding the Fourth Proportional to 1,310.27, 1,965.24 and 488.43

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Solution

The fourth proportional to 1,310.27, 1,965.24 and 488.43 is: 732.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310.27 : 1,965.24 = 488.43 : x
  2. Step 2: Convert to fraction form
    1,310.27/1,965.24 = 488.43/x
  3. Step 3: Cross multiply
    1,310.27x = 1,965.24 × 488.43
  4. Step 4: Simplify right side
    1,310.27x = 959,882.17
  5. Step 5: Solve for x
    x = 959,882.17/1,310.27
  6. Step 6: Final answer
    x = 732.59

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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.