Home / 5,321.76-7,338.88-3,329.80

Finding the Fourth Proportional to 5,321.76, 7,338.88 and 3,329.80

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Solution

The fourth proportional to 5,321.76, 7,338.88 and 3,329.80 is: 4,591.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.76 : 7,338.88 = 3,329.80 : x
  2. Step 2: Convert to fraction form
    5,321.76/7,338.88 = 3,329.80/x
  3. Step 3: Cross multiply
    5,321.76x = 7,338.88 × 3,329.80
  4. Step 4: Simplify right side
    5,321.76x = 24,437,002.62
  5. Step 5: Solve for x
    x = 24,437,002.62/5,321.76
  6. Step 6: Final answer
    x = 4,591.90

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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.