Home / 5,150.92-7,108.54-2,912.90

Finding the Fourth Proportional to 5,150.92, 7,108.54 and 2,912.90

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Solution

The fourth proportional to 5,150.92, 7,108.54 and 2,912.90 is: 4,019.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.92 : 7,108.54 = 2,912.90 : x
  2. Step 2: Convert to fraction form
    5,150.92/7,108.54 = 2,912.90/x
  3. Step 3: Cross multiply
    5,150.92x = 7,108.54 × 2,912.90
  4. Step 4: Simplify right side
    5,150.92x = 20,706,466.17
  5. Step 5: Solve for x
    x = 20,706,466.17/5,150.92
  6. Step 6: Final answer
    x = 4,019.95

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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.