Home / 6,879.20-9,488.48-4,327.70

Finding the Fourth Proportional to 6,879.20, 9,488.48 and 4,327.70

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Solution

The fourth proportional to 6,879.20, 9,488.48 and 4,327.70 is: 5,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,879.20 : 9,488.48 = 4,327.70 : x
  2. Step 2: Convert to fraction form
    6,879.20/9,488.48 = 4,327.70/x
  3. Step 3: Cross multiply
    6,879.20x = 9,488.48 × 4,327.70
  4. Step 4: Simplify right side
    6,879.20x = 41,063,294.90
  5. Step 5: Solve for x
    x = 41,063,294.90/6,879.20
  6. Step 6: Final answer
    x = 5,969.20

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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.