Home / 2,325.92-3,209.49-1,278.05

Finding the Fourth Proportional to 2,325.92, 3,209.49 and 1,278.05

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Solution

The fourth proportional to 2,325.92, 3,209.49 and 1,278.05 is: 1,763.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,325.92 : 3,209.49 = 1,278.05 : x
  2. Step 2: Convert to fraction form
    2,325.92/3,209.49 = 1,278.05/x
  3. Step 3: Cross multiply
    2,325.92x = 3,209.49 × 1,278.05
  4. Step 4: Simplify right side
    2,325.92x = 4,101,872.65
  5. Step 5: Solve for x
    x = 4,101,872.65/2,325.92
  6. Step 6: Final answer
    x = 1,763.55

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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.