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Finding the Fourth Proportional to 1,452.46, 2,178.69 and 587.38

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Solution

The fourth proportional to 1,452.46, 2,178.69 and 587.38 is: 881.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.46 : 2,178.69 = 587.38 : x
  2. Step 2: Convert to fraction form
    1,452.46/2,178.69 = 587.38/x
  3. Step 3: Cross multiply
    1,452.46x = 2,178.69 × 587.38
  4. Step 4: Simplify right side
    1,452.46x = 1,279,718.93
  5. Step 5: Solve for x
    x = 1,279,718.93/1,452.46
  6. Step 6: Final answer
    x = 881.07

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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.