Home / 5,149.38-7,106.10-2,911.25

Finding the Fourth Proportional to 5,149.38, 7,106.10 and 2,911.25

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Solution

The fourth proportional to 5,149.38, 7,106.10 and 2,911.25 is: 4,017.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.38 : 7,106.10 = 2,911.25 : x
  2. Step 2: Convert to fraction form
    5,149.38/7,106.10 = 2,911.25/x
  3. Step 3: Cross multiply
    5,149.38x = 7,106.10 × 2,911.25
  4. Step 4: Simplify right side
    5,149.38x = 20,687,640.90
  5. Step 5: Solve for x
    x = 20,687,640.90/5,149.38
  6. Step 6: Final answer
    x = 4,017.50

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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.