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Finding the Fourth Proportional to 1,521.76, 2,283.12 and 496.48

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Solution

The fourth proportional to 1,521.76, 2,283.12 and 496.48 is: 744.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.76 : 2,283.12 = 496.48 : x
  2. Step 2: Convert to fraction form
    1,521.76/2,283.12 = 496.48/x
  3. Step 3: Cross multiply
    1,521.76x = 2,283.12 × 496.48
  4. Step 4: Simplify right side
    1,521.76x = 1,133,523.42
  5. Step 5: Solve for x
    x = 1,133,523.42/1,521.76
  6. Step 6: Final answer
    x = 744.88

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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.