Home / 1,232.27-1,848.49-387.89

Finding the Fourth Proportional to 1,232.27, 1,848.49 and 387.89

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Solution

The fourth proportional to 1,232.27, 1,848.49 and 387.89 is: 581.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232.27 : 1,848.49 = 387.89 : x
  2. Step 2: Convert to fraction form
    1,232.27/1,848.49 = 387.89/x
  3. Step 3: Cross multiply
    1,232.27x = 1,848.49 × 387.89
  4. Step 4: Simplify right side
    1,232.27x = 717,012.70
  5. Step 5: Solve for x
    x = 717,012.70/1,232.27
  6. Step 6: Final answer
    x = 581.87

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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.