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Finding the Fourth Proportional to 1,612.79, 2,419.32 and 502.12

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Solution

The fourth proportional to 1,612.79, 2,419.32 and 502.12 is: 753.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.79 : 2,419.32 = 502.12 : x
  2. Step 2: Convert to fraction form
    1,612.79/2,419.32 = 502.12/x
  3. Step 3: Cross multiply
    1,612.79x = 2,419.32 × 502.12
  4. Step 4: Simplify right side
    1,612.79x = 1,214,797.85
  5. Step 5: Solve for x
    x = 1,214,797.85/1,612.79
  6. Step 6: Final answer
    x = 753.23

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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.