Home / 5,101.57-7,040.51-2,863.61

Finding the Fourth Proportional to 5,101.57, 7,040.51 and 2,863.61

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Solution

The fourth proportional to 5,101.57, 7,040.51 and 2,863.61 is: 3,951.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.57 : 7,040.51 = 2,863.61 : x
  2. Step 2: Convert to fraction form
    5,101.57/7,040.51 = 2,863.61/x
  3. Step 3: Cross multiply
    5,101.57x = 7,040.51 × 2,863.61
  4. Step 4: Simplify right side
    5,101.57x = 20,161,274.84
  5. Step 5: Solve for x
    x = 20,161,274.84/5,101.57
  6. Step 6: Final answer
    x = 3,951.97

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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.