Home / 3,377.47-4,659.30-2,117.90

Finding the Fourth Proportional to 3,377.47, 4,659.30 and 2,117.90

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Solution

The fourth proportional to 3,377.47, 4,659.30 and 2,117.90 is: 2,921.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,377.47 : 4,659.30 = 2,117.90 : x
  2. Step 2: Convert to fraction form
    3,377.47/4,659.30 = 2,117.90/x
  3. Step 3: Cross multiply
    3,377.47x = 4,659.30 × 2,117.90
  4. Step 4: Simplify right side
    3,377.47x = 9,867,910.95
  5. Step 5: Solve for x
    x = 9,867,910.95/3,377.47
  6. Step 6: Final answer
    x = 2,921.69

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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.