Home / 2,326.11-3,209.89-1,278.17

Finding the Fourth Proportional to 2,326.11, 3,209.89 and 1,278.17

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Solution

The fourth proportional to 2,326.11, 3,209.89 and 1,278.17 is: 1,763.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,326.11 : 3,209.89 = 1,278.17 : x
  2. Step 2: Convert to fraction form
    2,326.11/3,209.89 = 1,278.17/x
  3. Step 3: Cross multiply
    2,326.11x = 3,209.89 × 1,278.17
  4. Step 4: Simplify right side
    2,326.11x = 4,102,785.10
  5. Step 5: Solve for x
    x = 4,102,785.10/2,326.11
  6. Step 6: Final answer
    x = 1,763.80

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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.