Home / 5,158.92-7,738.65-3,928.26

Finding the Fourth Proportional to 5,158.92, 7,738.65 and 3,928.26

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Solution

The fourth proportional to 5,158.92, 7,738.65 and 3,928.26 is: 5,892.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.92 : 7,738.65 = 3,928.26 : x
  2. Step 2: Convert to fraction form
    5,158.92/7,738.65 = 3,928.26/x
  3. Step 3: Cross multiply
    5,158.92x = 7,738.65 × 3,928.26
  4. Step 4: Simplify right side
    5,158.92x = 30,399,429.25
  5. Step 5: Solve for x
    x = 30,399,429.25/5,158.92
  6. Step 6: Final answer
    x = 5,892.60

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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.