Home / 2,616.18-3,924.24-668.53

Finding the Fourth Proportional to 2,616.18, 3,924.24 and 668.53

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Solution

The fourth proportional to 2,616.18, 3,924.24 and 668.53 is: 1,002.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,616.18 : 3,924.24 = 668.53 : x
  2. Step 2: Convert to fraction form
    2,616.18/3,924.24 = 668.53/x
  3. Step 3: Cross multiply
    2,616.18x = 3,924.24 × 668.53
  4. Step 4: Simplify right side
    2,616.18x = 2,623,472.17
  5. Step 5: Solve for x
    x = 2,623,472.17/2,616.18
  6. Step 6: Final answer
    x = 1,002.79

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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.