Home / 2,326.98-3,211.17-1,278.90

Finding the Fourth Proportional to 2,326.98, 3,211.17 and 1,278.90

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Solution

The fourth proportional to 2,326.98, 3,211.17 and 1,278.90 is: 1,764.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,326.98 : 3,211.17 = 1,278.90 : x
  2. Step 2: Convert to fraction form
    2,326.98/3,211.17 = 1,278.90/x
  3. Step 3: Cross multiply
    2,326.98x = 3,211.17 × 1,278.90
  4. Step 4: Simplify right side
    2,326.98x = 4,106,765.31
  5. Step 5: Solve for x
    x = 4,106,765.31/2,326.98
  6. Step 6: Final answer
    x = 1,764.85

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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.