Home / 7,023.11-9,691.85-3,879.29

Finding the Fourth Proportional to 7,023.11, 9,691.85 and 3,879.29

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Solution

The fourth proportional to 7,023.11, 9,691.85 and 3,879.29 is: 5,353.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,023.11 : 9,691.85 = 3,879.29 : x
  2. Step 2: Convert to fraction form
    7,023.11/9,691.85 = 3,879.29/x
  3. Step 3: Cross multiply
    7,023.11x = 9,691.85 × 3,879.29
  4. Step 4: Simplify right side
    7,023.11x = 37,597,530.71
  5. Step 5: Solve for x
    x = 37,597,530.71/7,023.11
  6. Step 6: Final answer
    x = 5,353.41

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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.