Home / 3,199.83-4,411.46-2,871.78

Finding the Fourth Proportional to 3,199.83, 4,411.46 and 2,871.78

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Solution

The fourth proportional to 3,199.83, 4,411.46 and 2,871.78 is: 3,959.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,199.83 : 4,411.46 = 2,871.78 : x
  2. Step 2: Convert to fraction form
    3,199.83/4,411.46 = 2,871.78/x
  3. Step 3: Cross multiply
    3,199.83x = 4,411.46 × 2,871.78
  4. Step 4: Simplify right side
    3,199.83x = 12,668,742.60
  5. Step 5: Solve for x
    x = 12,668,742.60/3,199.83
  6. Step 6: Final answer
    x = 3,959.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.