Home / 3,521.60-4,863.79-2,400.61

Finding the Fourth Proportional to 3,521.60, 4,863.79 and 2,400.61

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Solution

The fourth proportional to 3,521.60, 4,863.79 and 2,400.61 is: 3,315.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.60 : 4,863.79 = 2,400.61 : x
  2. Step 2: Convert to fraction form
    3,521.60/4,863.79 = 2,400.61/x
  3. Step 3: Cross multiply
    3,521.60x = 4,863.79 × 2,400.61
  4. Step 4: Simplify right side
    3,521.60x = 11,676,062.91
  5. Step 5: Solve for x
    x = 11,676,062.91/3,521.60
  6. Step 6: Final answer
    x = 3,315.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.