Home / 3,117.90-4,671.87-2,182.61

Finding the Fourth Proportional to 3,117.90, 4,671.87 and 2,182.61

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Solution

The fourth proportional to 3,117.90, 4,671.87 and 2,182.61 is: 3,270.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.90 : 4,671.87 = 2,182.61 : x
  2. Step 2: Convert to fraction form
    3,117.90/4,671.87 = 2,182.61/x
  3. Step 3: Cross multiply
    3,117.90x = 4,671.87 × 2,182.61
  4. Step 4: Simplify right side
    3,117.90x = 10,196,873.68
  5. Step 5: Solve for x
    x = 10,196,873.68/3,117.90
  6. Step 6: Final answer
    x = 3,270.43

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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.