Home / 7,751.22-10,691.26-5,097.78

Finding the Fourth Proportional to 7,751.22, 10,691.26 and 5,097.78

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Solution

The fourth proportional to 7,751.22, 10,691.26 and 5,097.78 is: 7,031.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.22 : 10,691.26 = 5,097.78 : x
  2. Step 2: Convert to fraction form
    7,751.22/10,691.26 = 5,097.78/x
  3. Step 3: Cross multiply
    7,751.22x = 10,691.26 × 5,097.78
  4. Step 4: Simplify right side
    7,751.22x = 54,501,691.40
  5. Step 5: Solve for x
    x = 54,501,691.40/7,751.22
  6. Step 6: Final answer
    x = 7,031.37

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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.