Home / 2,769.80-3,822.38-1,650.95

Finding the Fourth Proportional to 2,769.80, 3,822.38 and 1,650.95

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Solution

The fourth proportional to 2,769.80, 3,822.38 and 1,650.95 is: 2,278.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.80 : 3,822.38 = 1,650.95 : x
  2. Step 2: Convert to fraction form
    2,769.80/3,822.38 = 1,650.95/x
  3. Step 3: Cross multiply
    2,769.80x = 3,822.38 × 1,650.95
  4. Step 4: Simplify right side
    2,769.80x = 6,310,530.89
  5. Step 5: Solve for x
    x = 6,310,530.89/2,769.80
  6. Step 6: Final answer
    x = 2,278.34

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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.