Home / 2,209.40-3,048.68-1,265.08

Finding the Fourth Proportional to 2,209.40, 3,048.68 and 1,265.08

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Solution

The fourth proportional to 2,209.40, 3,048.68 and 1,265.08 is: 1,745.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.40 : 3,048.68 = 1,265.08 : x
  2. Step 2: Convert to fraction form
    2,209.40/3,048.68 = 1,265.08/x
  3. Step 3: Cross multiply
    2,209.40x = 3,048.68 × 1,265.08
  4. Step 4: Simplify right side
    2,209.40x = 3,856,824.09
  5. Step 5: Solve for x
    x = 3,856,824.09/2,209.40
  6. Step 6: Final answer
    x = 1,745.64

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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.