Home / 5,382.29-7,427.22-3,144.80

Finding the Fourth Proportional to 5,382.29, 7,427.22 and 3,144.80

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Solution

The fourth proportional to 5,382.29, 7,427.22 and 3,144.80 is: 4,339.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.29 : 7,427.22 = 3,144.80 : x
  2. Step 2: Convert to fraction form
    5,382.29/7,427.22 = 3,144.80/x
  3. Step 3: Cross multiply
    5,382.29x = 7,427.22 × 3,144.80
  4. Step 4: Simplify right side
    5,382.29x = 23,357,121.46
  5. Step 5: Solve for x
    x = 23,357,121.46/5,382.29
  6. Step 6: Final answer
    x = 4,339.63

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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.