Home / 5,175.28-7,142.07-2,937.25

Finding the Fourth Proportional to 5,175.28, 7,142.07 and 2,937.25

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Solution

The fourth proportional to 5,175.28, 7,142.07 and 2,937.25 is: 4,053.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.28 : 7,142.07 = 2,937.25 : x
  2. Step 2: Convert to fraction form
    5,175.28/7,142.07 = 2,937.25/x
  3. Step 3: Cross multiply
    5,175.28x = 7,142.07 × 2,937.25
  4. Step 4: Simplify right side
    5,175.28x = 20,978,045.11
  5. Step 5: Solve for x
    x = 20,978,045.11/5,175.28
  6. Step 6: Final answer
    x = 4,053.51

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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.