Home / 2,649.30-3,974.19-701.49

Finding the Fourth Proportional to 2,649.30, 3,974.19 and 701.49

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Solution

The fourth proportional to 2,649.30, 3,974.19 and 701.49 is: 1,052.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.30 : 3,974.19 = 701.49 : x
  2. Step 2: Convert to fraction form
    2,649.30/3,974.19 = 701.49/x
  3. Step 3: Cross multiply
    2,649.30x = 3,974.19 × 701.49
  4. Step 4: Simplify right side
    2,649.30x = 2,787,854.54
  5. Step 5: Solve for x
    x = 2,787,854.54/2,649.30
  6. Step 6: Final answer
    x = 1,052.30

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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.