Home / 2,319.20-3,201.09-1,324.79

Finding the Fourth Proportional to 2,319.20, 3,201.09 and 1,324.79

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Solution

The fourth proportional to 2,319.20, 3,201.09 and 1,324.79 is: 1,828.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.20 : 3,201.09 = 1,324.79 : x
  2. Step 2: Convert to fraction form
    2,319.20/3,201.09 = 1,324.79/x
  3. Step 3: Cross multiply
    2,319.20x = 3,201.09 × 1,324.79
  4. Step 4: Simplify right side
    2,319.20x = 4,240,763.05
  5. Step 5: Solve for x
    x = 4,240,763.05/2,319.20
  6. Step 6: Final answer
    x = 1,828.55

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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.