Home / 7,131.09-10,695.56-2,747.91

Finding the Fourth Proportional to 7,131.09, 10,695.56 and 2,747.91

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Solution

The fourth proportional to 7,131.09, 10,695.56 and 2,747.91 is: 4,121.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.09 : 10,695.56 = 2,747.91 : x
  2. Step 2: Convert to fraction form
    7,131.09/10,695.56 = 2,747.91/x
  3. Step 3: Cross multiply
    7,131.09x = 10,695.56 × 2,747.91
  4. Step 4: Simplify right side
    7,131.09x = 29,390,422.54
  5. Step 5: Solve for x
    x = 29,390,422.54/7,131.09
  6. Step 6: Final answer
    x = 4,121.45

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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.