Home / 2,998.08-4,138.20-1,949.76

Finding the Fourth Proportional to 2,998.08, 4,138.20 and 1,949.76

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Solution

The fourth proportional to 2,998.08, 4,138.20 and 1,949.76 is: 2,691.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.08 : 4,138.20 = 1,949.76 : x
  2. Step 2: Convert to fraction form
    2,998.08/4,138.20 = 1,949.76/x
  3. Step 3: Cross multiply
    2,998.08x = 4,138.20 × 1,949.76
  4. Step 4: Simplify right side
    2,998.08x = 8,068,496.83
  5. Step 5: Solve for x
    x = 8,068,496.83/2,998.08
  6. Step 6: Final answer
    x = 2,691.22

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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.