Home / 5,101.88-7,040.50-2,863.58

Finding the Fourth Proportional to 5,101.88, 7,040.50 and 2,863.58

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Solution

The fourth proportional to 5,101.88, 7,040.50 and 2,863.58 is: 3,951.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.88 : 7,040.50 = 2,863.58 : x
  2. Step 2: Convert to fraction form
    5,101.88/7,040.50 = 2,863.58/x
  3. Step 3: Cross multiply
    5,101.88x = 7,040.50 × 2,863.58
  4. Step 4: Simplify right side
    5,101.88x = 20,161,020.67
  5. Step 5: Solve for x
    x = 20,161,020.67/5,101.88
  6. Step 6: Final answer
    x = 3,951.68

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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.