Home / 7,127.70-10,691.98-2,745.17

Finding the Fourth Proportional to 7,127.70, 10,691.98 and 2,745.17

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Solution

The fourth proportional to 7,127.70, 10,691.98 and 2,745.17 is: 4,117.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.70 : 10,691.98 = 2,745.17 : x
  2. Step 2: Convert to fraction form
    7,127.70/10,691.98 = 2,745.17/x
  3. Step 3: Cross multiply
    7,127.70x = 10,691.98 × 2,745.17
  4. Step 4: Simplify right side
    7,127.70x = 29,351,249.28
  5. Step 5: Solve for x
    x = 29,351,249.28/7,127.70
  6. Step 6: Final answer
    x = 4,117.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.