Home / 7,209.20-9,949.88-4,226.80

Finding the Fourth Proportional to 7,209.20, 9,949.88 and 4,226.80

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Solution

The fourth proportional to 7,209.20, 9,949.88 and 4,226.80 is: 5,833.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.20 : 9,949.88 = 4,226.80 : x
  2. Step 2: Convert to fraction form
    7,209.20/9,949.88 = 4,226.80/x
  3. Step 3: Cross multiply
    7,209.20x = 9,949.88 × 4,226.80
  4. Step 4: Simplify right side
    7,209.20x = 42,056,152.78
  5. Step 5: Solve for x
    x = 42,056,152.78/7,209.20
  6. Step 6: Final answer
    x = 5,833.68

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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.