Home / 5,149.59-7,106.77-2,910.65

Finding the Fourth Proportional to 5,149.59, 7,106.77 and 2,910.65

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Solution

The fourth proportional to 5,149.59, 7,106.77 and 2,910.65 is: 4,016.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.59 : 7,106.77 = 2,910.65 : x
  2. Step 2: Convert to fraction form
    5,149.59/7,106.77 = 2,910.65/x
  3. Step 3: Cross multiply
    5,149.59x = 7,106.77 × 2,910.65
  4. Step 4: Simplify right side
    5,149.59x = 20,685,288.20
  5. Step 5: Solve for x
    x = 20,685,288.20/5,149.59
  6. Step 6: Final answer
    x = 4,016.88

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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.