Home / 2,089.38-3,134.12-1,539.90

Finding the Fourth Proportional to 2,089.38, 3,134.12 and 1,539.90

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Solution

The fourth proportional to 2,089.38, 3,134.12 and 1,539.90 is: 2,309.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,089.38 : 3,134.12 = 1,539.90 : x
  2. Step 2: Convert to fraction form
    2,089.38/3,134.12 = 1,539.90/x
  3. Step 3: Cross multiply
    2,089.38x = 3,134.12 × 1,539.90
  4. Step 4: Simplify right side
    2,089.38x = 4,826,223.69
  5. Step 5: Solve for x
    x = 4,826,223.69/2,089.38
  6. Step 6: Final answer
    x = 2,309.88

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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.