Home / 5,110.39-7,050.34-2,871.75

Finding the Fourth Proportional to 5,110.39, 7,050.34 and 2,871.75

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Solution

The fourth proportional to 5,110.39, 7,050.34 and 2,871.75 is: 3,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.39 : 7,050.34 = 2,871.75 : x
  2. Step 2: Convert to fraction form
    5,110.39/7,050.34 = 2,871.75/x
  3. Step 3: Cross multiply
    5,110.39x = 7,050.34 × 2,871.75
  4. Step 4: Simplify right side
    5,110.39x = 20,246,843.92
  5. Step 5: Solve for x
    x = 20,246,843.92/5,110.39
  6. Step 6: Final answer
    x = 3,961.90

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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.