Home / 2,229.13-3,343.20-748.56

Finding the Fourth Proportional to 2,229.13, 3,343.20 and 748.56

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Solution

The fourth proportional to 2,229.13, 3,343.20 and 748.56 is: 1,122.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.13 : 3,343.20 = 748.56 : x
  2. Step 2: Convert to fraction form
    2,229.13/3,343.20 = 748.56/x
  3. Step 3: Cross multiply
    2,229.13x = 3,343.20 × 748.56
  4. Step 4: Simplify right side
    2,229.13x = 2,502,585.79
  5. Step 5: Solve for x
    x = 2,502,585.79/2,229.13
  6. Step 6: Final answer
    x = 1,122.67

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1.5x scale

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.