Home / 5,382.33-7,428.47-3,144.18

Finding the Fourth Proportional to 5,382.33, 7,428.47 and 3,144.18

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Solution

The fourth proportional to 5,382.33, 7,428.47 and 3,144.18 is: 4,339.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.33 : 7,428.47 = 3,144.18 : x
  2. Step 2: Convert to fraction form
    5,382.33/7,428.47 = 3,144.18/x
  3. Step 3: Cross multiply
    5,382.33x = 7,428.47 × 3,144.18
  4. Step 4: Simplify right side
    5,382.33x = 23,356,446.80
  5. Step 5: Solve for x
    x = 23,356,446.80/5,382.33
  6. Step 6: Final answer
    x = 4,339.47

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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.