Home / 2,326.79-3,210.97-1,278.85

Finding the Fourth Proportional to 2,326.79, 3,210.97 and 1,278.85

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Solution

The fourth proportional to 2,326.79, 3,210.97 and 1,278.85 is: 1,764.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,326.79 : 3,210.97 = 1,278.85 : x
  2. Step 2: Convert to fraction form
    2,326.79/3,210.97 = 1,278.85/x
  3. Step 3: Cross multiply
    2,326.79x = 3,210.97 × 1,278.85
  4. Step 4: Simplify right side
    2,326.79x = 4,106,348.98
  5. Step 5: Solve for x
    x = 4,106,348.98/2,326.79
  6. Step 6: Final answer
    x = 1,764.81

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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.