Home / 2,949.30-4,074.18-2,793.78

Finding the Fourth Proportional to 2,949.30, 4,074.18 and 2,793.78

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Solution

The fourth proportional to 2,949.30, 4,074.18 and 2,793.78 is: 3,859.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.30 : 4,074.18 = 2,793.78 : x
  2. Step 2: Convert to fraction form
    2,949.30/4,074.18 = 2,793.78/x
  3. Step 3: Cross multiply
    2,949.30x = 4,074.18 × 2,793.78
  4. Step 4: Simplify right side
    2,949.30x = 11,382,362.60
  5. Step 5: Solve for x
    x = 11,382,362.60/2,949.30
  6. Step 6: Final answer
    x = 3,859.34

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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.