Home / 2,649.24-3,945.24-2,581.20

Finding the Fourth Proportional to 2,649.24, 3,945.24 and 2,581.20

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Solution

The fourth proportional to 2,649.24, 3,945.24 and 2,581.20 is: 3,843.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.24 : 3,945.24 = 2,581.20 : x
  2. Step 2: Convert to fraction form
    2,649.24/3,945.24 = 2,581.20/x
  3. Step 3: Cross multiply
    2,649.24x = 3,945.24 × 2,581.20
  4. Step 4: Simplify right side
    2,649.24x = 10,183,453.49
  5. Step 5: Solve for x
    x = 10,183,453.49/2,649.24
  6. Step 6: Final answer
    x = 3,843.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.