Home / 7,127.39-10,691.77-2,197.75

Finding the Fourth Proportional to 7,127.39, 10,691.77 and 2,197.75

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Solution

The fourth proportional to 7,127.39, 10,691.77 and 2,197.75 is: 3,296.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.39 : 10,691.77 = 2,197.75 : x
  2. Step 2: Convert to fraction form
    7,127.39/10,691.77 = 2,197.75/x
  3. Step 3: Cross multiply
    7,127.39x = 10,691.77 × 2,197.75
  4. Step 4: Simplify right side
    7,127.39x = 23,497,826.53
  5. Step 5: Solve for x
    x = 23,497,826.53/7,127.39
  6. Step 6: Final answer
    x = 3,296.84

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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.