Home / 3,649.16-5,479.20-2,090.92

Finding the Fourth Proportional to 3,649.16, 5,479.20 and 2,090.92

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Solution

The fourth proportional to 3,649.16, 5,479.20 and 2,090.92 is: 3,139.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,649.16 : 5,479.20 = 2,090.92 : x
  2. Step 2: Convert to fraction form
    3,649.16/5,479.20 = 2,090.92/x
  3. Step 3: Cross multiply
    3,649.16x = 5,479.20 × 2,090.92
  4. Step 4: Simplify right side
    3,649.16x = 11,456,568.86
  5. Step 5: Solve for x
    x = 11,456,568.86/3,649.16
  6. Step 6: Final answer
    x = 3,139.51

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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.