Home / 2,209.70-3,049.43-1,265.49

Finding the Fourth Proportional to 2,209.70, 3,049.43 and 1,265.49

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Solution

The fourth proportional to 2,209.70, 3,049.43 and 1,265.49 is: 1,746.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.70 : 3,049.43 = 1,265.49 : x
  2. Step 2: Convert to fraction form
    2,209.70/3,049.43 = 1,265.49/x
  3. Step 3: Cross multiply
    2,209.70x = 3,049.43 × 1,265.49
  4. Step 4: Simplify right side
    2,209.70x = 3,859,016.84
  5. Step 5: Solve for x
    x = 3,859,016.84/2,209.70
  6. Step 6: Final answer
    x = 1,746.40

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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.