Home / 7,229.20-9,975.72-4,244.80

Finding the Fourth Proportional to 7,229.20, 9,975.72 and 4,244.80

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Solution

The fourth proportional to 7,229.20, 9,975.72 and 4,244.80 is: 5,857.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,229.20 : 9,975.72 = 4,244.80 : x
  2. Step 2: Convert to fraction form
    7,229.20/9,975.72 = 4,244.80/x
  3. Step 3: Cross multiply
    7,229.20x = 9,975.72 × 4,244.80
  4. Step 4: Simplify right side
    7,229.20x = 42,344,936.26
  5. Step 5: Solve for x
    x = 42,344,936.26/7,229.20
  6. Step 6: Final answer
    x = 5,857.49

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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.