Home / 7,127.61-10,691.55-2,447.59

Finding the Fourth Proportional to 7,127.61, 10,691.55 and 2,447.59

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Solution

The fourth proportional to 7,127.61, 10,691.55 and 2,447.59 is: 3,671.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.61 : 10,691.55 = 2,447.59 : x
  2. Step 2: Convert to fraction form
    7,127.61/10,691.55 = 2,447.59/x
  3. Step 3: Cross multiply
    7,127.61x = 10,691.55 × 2,447.59
  4. Step 4: Simplify right side
    7,127.61x = 26,168,530.86
  5. Step 5: Solve for x
    x = 26,168,530.86/7,127.61
  6. Step 6: Final answer
    x = 3,671.43

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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.