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Finding the Fourth Proportional to 1,523.12, 2,284.79 and 483.20

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Solution

The fourth proportional to 1,523.12, 2,284.79 and 483.20 is: 724.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,523.12 : 2,284.79 = 483.20 : x
  2. Step 2: Convert to fraction form
    1,523.12/2,284.79 = 483.20/x
  3. Step 3: Cross multiply
    1,523.12x = 2,284.79 × 483.20
  4. Step 4: Simplify right side
    1,523.12x = 1,103,996.69
  5. Step 5: Solve for x
    x = 1,103,996.69/1,523.12
  6. Step 6: Final answer
    x = 724.83

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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.