Home / 7,281.20-10,908.84-3,378.80

Finding the Fourth Proportional to 7,281.20, 10,908.84 and 3,378.80

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Solution

The fourth proportional to 7,281.20, 10,908.84 and 3,378.80 is: 5,062.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.20 : 10,908.84 = 3,378.80 : x
  2. Step 2: Convert to fraction form
    7,281.20/10,908.84 = 3,378.80/x
  3. Step 3: Cross multiply
    7,281.20x = 10,908.84 × 3,378.80
  4. Step 4: Simplify right side
    7,281.20x = 36,858,788.59
  5. Step 5: Solve for x
    x = 36,858,788.59/7,281.20
  6. Step 6: Final answer
    x = 5,062.19

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1.5x scale

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.