Home / 5,137.12-7,081.68-3,701.92

Finding the Fourth Proportional to 5,137.12, 7,081.68 and 3,701.92

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Solution

The fourth proportional to 5,137.12, 7,081.68 and 3,701.92 is: 5,103.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.12 : 7,081.68 = 3,701.92 : x
  2. Step 2: Convert to fraction form
    5,137.12/7,081.68 = 3,701.92/x
  3. Step 3: Cross multiply
    5,137.12x = 7,081.68 × 3,701.92
  4. Step 4: Simplify right side
    5,137.12x = 26,215,812.83
  5. Step 5: Solve for x
    x = 26,215,812.83/5,137.12
  6. Step 6: Final answer
    x = 5,103.21

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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.