Home / 2,447.66-3,665.68-1,521.61

Finding the Fourth Proportional to 2,447.66, 3,665.68 and 1,521.61

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Solution

The fourth proportional to 2,447.66, 3,665.68 and 1,521.61 is: 2,278.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.66 : 3,665.68 = 1,521.61 : x
  2. Step 2: Convert to fraction form
    2,447.66/3,665.68 = 1,521.61/x
  3. Step 3: Cross multiply
    2,447.66x = 3,665.68 × 1,521.61
  4. Step 4: Simplify right side
    2,447.66x = 5,577,722.38
  5. Step 5: Solve for x
    x = 5,577,722.38/2,447.66
  6. Step 6: Final answer
    x = 2,278.80

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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.