Home / 5,175.41-7,142.13-3,079.13

Finding the Fourth Proportional to 5,175.41, 7,142.13 and 3,079.13

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Solution

The fourth proportional to 5,175.41, 7,142.13 and 3,079.13 is: 4,249.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.41 : 7,142.13 = 3,079.13 : x
  2. Step 2: Convert to fraction form
    5,175.41/7,142.13 = 3,079.13/x
  3. Step 3: Cross multiply
    5,175.41x = 7,142.13 × 3,079.13
  4. Step 4: Simplify right side
    5,175.41x = 21,991,511.04
  5. Step 5: Solve for x
    x = 21,991,511.04/5,175.41
  6. Step 6: Final answer
    x = 4,249.23

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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.