Home / 5,148.95-7,105.68-3,158.33

Finding the Fourth Proportional to 5,148.95, 7,105.68 and 3,158.33

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Solution

The fourth proportional to 5,148.95, 7,105.68 and 3,158.33 is: 4,358.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.95 : 7,105.68 = 3,158.33 : x
  2. Step 2: Convert to fraction form
    5,148.95/7,105.68 = 3,158.33/x
  3. Step 3: Cross multiply
    5,148.95x = 7,105.68 × 3,158.33
  4. Step 4: Simplify right side
    5,148.95x = 22,442,046.79
  5. Step 5: Solve for x
    x = 22,442,046.79/5,148.95
  6. Step 6: Final answer
    x = 4,358.57

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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.