Home / 3,649.40-5,469.60-2,479.40

Finding the Fourth Proportional to 3,649.40, 5,469.60 and 2,479.40

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Solution

The fourth proportional to 3,649.40, 5,469.60 and 2,479.40 is: 3,716.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,649.40 : 5,469.60 = 2,479.40 : x
  2. Step 2: Convert to fraction form
    3,649.40/5,469.60 = 2,479.40/x
  3. Step 3: Cross multiply
    3,649.40x = 5,469.60 × 2,479.40
  4. Step 4: Simplify right side
    3,649.40x = 13,561,326.24
  5. Step 5: Solve for x
    x = 13,561,326.24/3,649.40
  6. Step 6: Final answer
    x = 3,716.04

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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.