Home / 5,101.62-7,039.81-2,863.18

Finding the Fourth Proportional to 5,101.62, 7,039.81 and 2,863.18

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Solution

The fourth proportional to 5,101.62, 7,039.81 and 2,863.18 is: 3,950.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.62 : 7,039.81 = 2,863.18 : x
  2. Step 2: Convert to fraction form
    5,101.62/7,039.81 = 2,863.18/x
  3. Step 3: Cross multiply
    5,101.62x = 7,039.81 × 2,863.18
  4. Step 4: Simplify right side
    5,101.62x = 20,156,243.20
  5. Step 5: Solve for x
    x = 20,156,243.20/5,101.62
  6. Step 6: Final answer
    x = 3,950.95

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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.