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Finding the Fourth Proportional to 1,484.72, 2,226.92 and 510.56

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Solution

The fourth proportional to 1,484.72, 2,226.92 and 510.56 is: 765.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,484.72 : 2,226.92 = 510.56 : x
  2. Step 2: Convert to fraction form
    1,484.72/2,226.92 = 510.56/x
  3. Step 3: Cross multiply
    1,484.72x = 2,226.92 × 510.56
  4. Step 4: Simplify right side
    1,484.72x = 1,136,976.28
  5. Step 5: Solve for x
    x = 1,136,976.28/1,484.72
  6. Step 6: Final answer
    x = 765.78

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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.