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Finding the Fourth Proportional to 5,671.86, 8,512.29 and 2,387.22

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Solution

The fourth proportional to 5,671.86, 8,512.29 and 2,387.22 is: 3,582.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,671.86 : 8,512.29 = 2,387.22 : x
  2. Step 2: Convert to fraction form
    5,671.86/8,512.29 = 2,387.22/x
  3. Step 3: Cross multiply
    5,671.86x = 8,512.29 × 2,387.22
  4. Step 4: Simplify right side
    5,671.86x = 20,320,708.93
  5. Step 5: Solve for x
    x = 20,320,708.93/5,671.86
  6. Step 6: Final answer
    x = 3,582.72

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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.