Home / 5,117.05-7,664.23-4,138.57

Finding the Fourth Proportional to 5,117.05, 7,664.23 and 4,138.57

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Solution

The fourth proportional to 5,117.05, 7,664.23 and 4,138.57 is: 6,198.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.05 : 7,664.23 = 4,138.57 : x
  2. Step 2: Convert to fraction form
    5,117.05/7,664.23 = 4,138.57/x
  3. Step 3: Cross multiply
    5,117.05x = 7,664.23 × 4,138.57
  4. Step 4: Simplify right side
    5,117.05x = 31,718,952.35
  5. Step 5: Solve for x
    x = 31,718,952.35/5,117.05
  6. Step 6: Final answer
    x = 6,198.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.