Home / 5,170.28-7,758.89-5,151.25

Finding the Fourth Proportional to 5,170.28, 7,758.89 and 5,151.25

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Solution

The fourth proportional to 5,170.28, 7,758.89 and 5,151.25 is: 7,730.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.28 : 7,758.89 = 5,151.25 : x
  2. Step 2: Convert to fraction form
    5,170.28/7,758.89 = 5,151.25/x
  3. Step 3: Cross multiply
    5,170.28x = 7,758.89 × 5,151.25
  4. Step 4: Simplify right side
    5,170.28x = 39,967,936.96
  5. Step 5: Solve for x
    x = 39,967,936.96/5,170.28
  6. Step 6: Final answer
    x = 7,730.33

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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.