Home / 5,167.19-7,751.78-2,205.58

Finding the Fourth Proportional to 5,167.19, 7,751.78 and 2,205.58

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Solution

The fourth proportional to 5,167.19, 7,751.78 and 2,205.58 is: 3,308.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.19 : 7,751.78 = 2,205.58 : x
  2. Step 2: Convert to fraction form
    5,167.19/7,751.78 = 2,205.58/x
  3. Step 3: Cross multiply
    5,167.19x = 7,751.78 × 2,205.58
  4. Step 4: Simplify right side
    5,167.19x = 17,097,170.93
  5. Step 5: Solve for x
    x = 17,097,170.93/5,167.19
  6. Step 6: Final answer
    x = 3,308.79

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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.