Home / 3,137.18-4,331.18-1,959.84

Finding the Fourth Proportional to 3,137.18, 4,331.18 and 1,959.84

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Solution

The fourth proportional to 3,137.18, 4,331.18 and 1,959.84 is: 2,705.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.18 : 4,331.18 = 1,959.84 : x
  2. Step 2: Convert to fraction form
    3,137.18/4,331.18 = 1,959.84/x
  3. Step 3: Cross multiply
    3,137.18x = 4,331.18 × 1,959.84
  4. Step 4: Simplify right side
    3,137.18x = 8,488,414.91
  5. Step 5: Solve for x
    x = 8,488,414.91/3,137.18
  6. Step 6: Final answer
    x = 2,705.75

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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.