Home / 5,135.01-7,086.12-2,896.85

Finding the Fourth Proportional to 5,135.01, 7,086.12 and 2,896.85

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Solution

The fourth proportional to 5,135.01, 7,086.12 and 2,896.85 is: 3,997.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.01 : 7,086.12 = 2,896.85 : x
  2. Step 2: Convert to fraction form
    5,135.01/7,086.12 = 2,896.85/x
  3. Step 3: Cross multiply
    5,135.01x = 7,086.12 × 2,896.85
  4. Step 4: Simplify right side
    5,135.01x = 20,527,391.29
  5. Step 5: Solve for x
    x = 20,527,391.29/5,135.01
  6. Step 6: Final answer
    x = 3,997.54

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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.