Home / 2,449.71-3,380.90-1,401.75

Finding the Fourth Proportional to 2,449.71, 3,380.90 and 1,401.75

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Solution

The fourth proportional to 2,449.71, 3,380.90 and 1,401.75 is: 1,934.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,449.71 : 3,380.90 = 1,401.75 : x
  2. Step 2: Convert to fraction form
    2,449.71/3,380.90 = 1,401.75/x
  3. Step 3: Cross multiply
    2,449.71x = 3,380.90 × 1,401.75
  4. Step 4: Simplify right side
    2,449.71x = 4,739,169.57
  5. Step 5: Solve for x
    x = 4,739,169.57/2,449.71
  6. Step 6: Final answer
    x = 1,934.58

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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.