Home / 1,536.30-2,304.27-425.80

Finding the Fourth Proportional to 1,536.30, 2,304.27 and 425.80

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Solution

The fourth proportional to 1,536.30, 2,304.27 and 425.80 is: 638.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536.30 : 2,304.27 = 425.80 : x
  2. Step 2: Convert to fraction form
    1,536.30/2,304.27 = 425.80/x
  3. Step 3: Cross multiply
    1,536.30x = 2,304.27 × 425.80
  4. Step 4: Simplify right side
    1,536.30x = 981,155.76
  5. Step 5: Solve for x
    x = 981,155.76/1,536.30
  6. Step 6: Final answer
    x = 638.65

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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.