Home / 3,478.38-4,799.96-1,965.94

Finding the Fourth Proportional to 3,478.38, 4,799.96 and 1,965.94

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Solution

The fourth proportional to 3,478.38, 4,799.96 and 1,965.94 is: 2,712.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.38 : 4,799.96 = 1,965.94 : x
  2. Step 2: Convert to fraction form
    3,478.38/4,799.96 = 1,965.94/x
  3. Step 3: Cross multiply
    3,478.38x = 4,799.96 × 1,965.94
  4. Step 4: Simplify right side
    3,478.38x = 9,436,418.91
  5. Step 5: Solve for x
    x = 9,436,418.91/3,478.38
  6. Step 6: Final answer
    x = 2,712.88

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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.