Home / 5,135.84-7,091.78-3,250.75

Finding the Fourth Proportional to 5,135.84, 7,091.78 and 3,250.75

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Solution

The fourth proportional to 5,135.84, 7,091.78 and 3,250.75 is: 4,488.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.84 : 7,091.78 = 3,250.75 : x
  2. Step 2: Convert to fraction form
    5,135.84/7,091.78 = 3,250.75/x
  3. Step 3: Cross multiply
    5,135.84x = 7,091.78 × 3,250.75
  4. Step 4: Simplify right side
    5,135.84x = 23,053,552.12
  5. Step 5: Solve for x
    x = 23,053,552.12/5,135.84
  6. Step 6: Final answer
    x = 4,488.76

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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.