Home / 5,110.10-7,049.05-3,218.43

Finding the Fourth Proportional to 5,110.10, 7,049.05 and 3,218.43

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Solution

The fourth proportional to 5,110.10, 7,049.05 and 3,218.43 is: 4,439.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.10 : 7,049.05 = 3,218.43 : x
  2. Step 2: Convert to fraction form
    5,110.10/7,049.05 = 3,218.43/x
  3. Step 3: Cross multiply
    5,110.10x = 7,049.05 × 3,218.43
  4. Step 4: Simplify right side
    5,110.10x = 22,686,873.99
  5. Step 5: Solve for x
    x = 22,686,873.99/5,110.10
  6. Step 6: Final answer
    x = 4,439.61

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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.