Home / 2,529.20-3,489.19-1,521.31

Finding the Fourth Proportional to 2,529.20, 3,489.19 and 1,521.31

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Solution

The fourth proportional to 2,529.20, 3,489.19 and 1,521.31 is: 2,098.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,529.20 : 3,489.19 = 1,521.31 : x
  2. Step 2: Convert to fraction form
    2,529.20/3,489.19 = 1,521.31/x
  3. Step 3: Cross multiply
    2,529.20x = 3,489.19 × 1,521.31
  4. Step 4: Simplify right side
    2,529.20x = 5,308,125.98
  5. Step 5: Solve for x
    x = 5,308,125.98/2,529.20
  6. Step 6: Final answer
    x = 2,098.74

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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.