Home / 2,949.60-4,422.15-1,489.80

Finding the Fourth Proportional to 2,949.60, 4,422.15 and 1,489.80

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Solution

The fourth proportional to 2,949.60, 4,422.15 and 1,489.80 is: 2,233.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.60 : 4,422.15 = 1,489.80 : x
  2. Step 2: Convert to fraction form
    2,949.60/4,422.15 = 1,489.80/x
  3. Step 3: Cross multiply
    2,949.60x = 4,422.15 × 1,489.80
  4. Step 4: Simplify right side
    2,949.60x = 6,588,119.07
  5. Step 5: Solve for x
    x = 6,588,119.07/2,949.60
  6. Step 6: Final answer
    x = 2,233.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.