Home / 1,372.52-2,046.88-1,299.62

Finding the Fourth Proportional to 1,372.52, 2,046.88 and 1,299.62

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Solution

The fourth proportional to 1,372.52, 2,046.88 and 1,299.62 is: 1,938.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372.52 : 2,046.88 = 1,299.62 : x
  2. Step 2: Convert to fraction form
    1,372.52/2,046.88 = 1,299.62/x
  3. Step 3: Cross multiply
    1,372.52x = 2,046.88 × 1,299.62
  4. Step 4: Simplify right side
    1,372.52x = 2,660,166.19
  5. Step 5: Solve for x
    x = 2,660,166.19/1,372.52
  6. Step 6: Final answer
    x = 1,938.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.