Home / 5,117.14-7,061.49-2,879.02

Finding the Fourth Proportional to 5,117.14, 7,061.49 and 2,879.02

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Solution

The fourth proportional to 5,117.14, 7,061.49 and 2,879.02 is: 3,972.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.14 : 7,061.49 = 2,879.02 : x
  2. Step 2: Convert to fraction form
    5,117.14/7,061.49 = 2,879.02/x
  3. Step 3: Cross multiply
    5,117.14x = 7,061.49 × 2,879.02
  4. Step 4: Simplify right side
    5,117.14x = 20,330,170.94
  5. Step 5: Solve for x
    x = 20,330,170.94/5,117.14
  6. Step 6: Final answer
    x = 3,972.96

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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.