Home / 2,158.22-3,238.96-1,337.70

Finding the Fourth Proportional to 2,158.22, 3,238.96 and 1,337.70

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Solution

The fourth proportional to 2,158.22, 3,238.96 and 1,337.70 is: 2,007.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.22 : 3,238.96 = 1,337.70 : x
  2. Step 2: Convert to fraction form
    2,158.22/3,238.96 = 1,337.70/x
  3. Step 3: Cross multiply
    2,158.22x = 3,238.96 × 1,337.70
  4. Step 4: Simplify right side
    2,158.22x = 4,332,756.79
  5. Step 5: Solve for x
    x = 4,332,756.79/2,158.22
  6. Step 6: Final answer
    x = 2,007.56

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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.