Home / 7,276.80-10,920.48-3,381.60

Finding the Fourth Proportional to 7,276.80, 10,920.48 and 3,381.60

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Solution

The fourth proportional to 7,276.80, 10,920.48 and 3,381.60 is: 5,074.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,276.80 : 10,920.48 = 3,381.60 : x
  2. Step 2: Convert to fraction form
    7,276.80/10,920.48 = 3,381.60/x
  3. Step 3: Cross multiply
    7,276.80x = 10,920.48 × 3,381.60
  4. Step 4: Simplify right side
    7,276.80x = 36,928,695.17
  5. Step 5: Solve for x
    x = 36,928,695.17/7,276.80
  6. Step 6: Final answer
    x = 5,074.85

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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.