Home / 5,134.35-7,084.98-2,896.78

Finding the Fourth Proportional to 5,134.35, 7,084.98 and 2,896.78

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Solution

The fourth proportional to 5,134.35, 7,084.98 and 2,896.78 is: 3,997.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,134.35 : 7,084.98 = 2,896.78 : x
  2. Step 2: Convert to fraction form
    5,134.35/7,084.98 = 2,896.78/x
  3. Step 3: Cross multiply
    5,134.35x = 7,084.98 × 2,896.78
  4. Step 4: Simplify right side
    5,134.35x = 20,523,628.36
  5. Step 5: Solve for x
    x = 20,523,628.36/5,134.35
  6. Step 6: Final answer
    x = 3,997.32

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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.