Home / 5,105.16-7,646.94-2,912.76

Finding the Fourth Proportional to 5,105.16, 7,646.94 and 2,912.76

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Solution

The fourth proportional to 5,105.16, 7,646.94 and 2,912.76 is: 4,362.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.16 : 7,646.94 = 2,912.76 : x
  2. Step 2: Convert to fraction form
    5,105.16/7,646.94 = 2,912.76/x
  3. Step 3: Cross multiply
    5,105.16x = 7,646.94 × 2,912.76
  4. Step 4: Simplify right side
    5,105.16x = 22,273,700.95
  5. Step 5: Solve for x
    x = 22,273,700.95/5,105.16
  6. Step 6: Final answer
    x = 4,362.98

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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.