Home / 5,091.17-7,029.23-3,179.89

Finding the Fourth Proportional to 5,091.17, 7,029.23 and 3,179.89

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Solution

The fourth proportional to 5,091.17, 7,029.23 and 3,179.89 is: 4,390.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.17 : 7,029.23 = 3,179.89 : x
  2. Step 2: Convert to fraction form
    5,091.17/7,029.23 = 3,179.89/x
  3. Step 3: Cross multiply
    5,091.17x = 7,029.23 × 3,179.89
  4. Step 4: Simplify right side
    5,091.17x = 22,352,144.71
  5. Step 5: Solve for x
    x = 22,352,144.71/5,091.17
  6. Step 6: Final answer
    x = 4,390.38

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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.