Home / 5,161.97-7,119.54-3,480.71

Finding the Fourth Proportional to 5,161.97, 7,119.54 and 3,480.71

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Solution

The fourth proportional to 5,161.97, 7,119.54 and 3,480.71 is: 4,800.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.97 : 7,119.54 = 3,480.71 : x
  2. Step 2: Convert to fraction form
    5,161.97/7,119.54 = 3,480.71/x
  3. Step 3: Cross multiply
    5,161.97x = 7,119.54 × 3,480.71
  4. Step 4: Simplify right side
    5,161.97x = 24,781,018.48
  5. Step 5: Solve for x
    x = 24,781,018.48/5,161.97
  6. Step 6: Final answer
    x = 4,800.69

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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.