Home / 7,422.59-10,244.12-4,278.80

Finding the Fourth Proportional to 7,422.59, 10,244.12 and 4,278.80

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Solution

The fourth proportional to 7,422.59, 10,244.12 and 4,278.80 is: 5,905.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.59 : 10,244.12 = 4,278.80 : x
  2. Step 2: Convert to fraction form
    7,422.59/10,244.12 = 4,278.80/x
  3. Step 3: Cross multiply
    7,422.59x = 10,244.12 × 4,278.80
  4. Step 4: Simplify right side
    7,422.59x = 43,832,468.04
  5. Step 5: Solve for x
    x = 43,832,468.04/7,422.59
  6. Step 6: Final answer
    x = 5,905.28

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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.