Home / 5,940.38-8,187.41-5,142.13

Finding the Fourth Proportional to 5,940.38, 8,187.41 and 5,142.13

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Solution

The fourth proportional to 5,940.38, 8,187.41 and 5,142.13 is: 7,087.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,940.38 : 8,187.41 = 5,142.13 : x
  2. Step 2: Convert to fraction form
    5,940.38/8,187.41 = 5,142.13/x
  3. Step 3: Cross multiply
    5,940.38x = 8,187.41 × 5,142.13
  4. Step 4: Simplify right side
    5,940.38x = 42,100,718.97
  5. Step 5: Solve for x
    x = 42,100,718.97/5,940.38
  6. Step 6: Final answer
    x = 7,087.21

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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.