Home / 5,119.92-7,065.51-2,881.83

Finding the Fourth Proportional to 5,119.92, 7,065.51 and 2,881.83

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Solution

The fourth proportional to 5,119.92, 7,065.51 and 2,881.83 is: 3,976.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.92 : 7,065.51 = 2,881.83 : x
  2. Step 2: Convert to fraction form
    5,119.92/7,065.51 = 2,881.83/x
  3. Step 3: Cross multiply
    5,119.92x = 7,065.51 × 2,881.83
  4. Step 4: Simplify right side
    5,119.92x = 20,361,609.14
  5. Step 5: Solve for x
    x = 20,361,609.14/5,119.92
  6. Step 6: Final answer
    x = 3,976.94

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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.