Home / 2,801.97-3,871.67-2,217.15

Finding the Fourth Proportional to 2,801.97, 3,871.67 and 2,217.15

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Solution

The fourth proportional to 2,801.97, 3,871.67 and 2,217.15 is: 3,063.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,801.97 : 3,871.67 = 2,217.15 : x
  2. Step 2: Convert to fraction form
    2,801.97/3,871.67 = 2,217.15/x
  3. Step 3: Cross multiply
    2,801.97x = 3,871.67 × 2,217.15
  4. Step 4: Simplify right side
    2,801.97x = 8,584,062.05
  5. Step 5: Solve for x
    x = 8,584,062.05/2,801.97
  6. Step 6: Final answer
    x = 3,063.58

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1.5x scale

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.