Home / 2,769.38-3,821.72-1,650.32

Finding the Fourth Proportional to 2,769.38, 3,821.72 and 1,650.32

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Solution

The fourth proportional to 2,769.38, 3,821.72 and 1,650.32 is: 2,277.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.38 : 3,821.72 = 1,650.32 : x
  2. Step 2: Convert to fraction form
    2,769.38/3,821.72 = 1,650.32/x
  3. Step 3: Cross multiply
    2,769.38x = 3,821.72 × 1,650.32
  4. Step 4: Simplify right side
    2,769.38x = 6,307,060.95
  5. Step 5: Solve for x
    x = 6,307,060.95/2,769.38
  6. Step 6: Final answer
    x = 2,277.43

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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.