Home / 7,023.20-9,691.92-3,879.41

Finding the Fourth Proportional to 7,023.20, 9,691.92 and 3,879.41

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Solution

The fourth proportional to 7,023.20, 9,691.92 and 3,879.41 is: 5,353.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,023.20 : 9,691.92 = 3,879.41 : x
  2. Step 2: Convert to fraction form
    7,023.20/9,691.92 = 3,879.41/x
  3. Step 3: Cross multiply
    7,023.20x = 9,691.92 × 3,879.41
  4. Step 4: Simplify right side
    7,023.20x = 37,598,931.37
  5. Step 5: Solve for x
    x = 37,598,931.37/7,023.20
  6. Step 6: Final answer
    x = 5,353.53

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1.5x scale

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.