Home / 3,879.29-5,808.61-2,649.11

Finding the Fourth Proportional to 3,879.29, 5,808.61 and 2,649.11

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Solution

The fourth proportional to 3,879.29, 5,808.61 and 2,649.11 is: 3,966.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.29 : 5,808.61 = 2,649.11 : x
  2. Step 2: Convert to fraction form
    3,879.29/5,808.61 = 2,649.11/x
  3. Step 3: Cross multiply
    3,879.29x = 5,808.61 × 2,649.11
  4. Step 4: Simplify right side
    3,879.29x = 15,387,621.11
  5. Step 5: Solve for x
    x = 15,387,621.11/3,879.29
  6. Step 6: Final answer
    x = 3,966.61

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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.