Home / 2,159.06-3,231.30-1,337.90

Finding the Fourth Proportional to 2,159.06, 3,231.30 and 1,337.90

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Solution

The fourth proportional to 2,159.06, 3,231.30 and 1,337.90 is: 2,002.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159.06 : 3,231.30 = 1,337.90 : x
  2. Step 2: Convert to fraction form
    2,159.06/3,231.30 = 1,337.90/x
  3. Step 3: Cross multiply
    2,159.06x = 3,231.30 × 1,337.90
  4. Step 4: Simplify right side
    2,159.06x = 4,323,156.27
  5. Step 5: Solve for x
    x = 4,323,156.27/2,159.06
  6. Step 6: Final answer
    x = 2,002.33

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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.