Home / 2,209.94-3,049.75-1,215.24

Finding the Fourth Proportional to 2,209.94, 3,049.75 and 1,215.24

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Solution

The fourth proportional to 2,209.94, 3,049.75 and 1,215.24 is: 1,677.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.94 : 3,049.75 = 1,215.24 : x
  2. Step 2: Convert to fraction form
    2,209.94/3,049.75 = 1,215.24/x
  3. Step 3: Cross multiply
    2,209.94x = 3,049.75 × 1,215.24
  4. Step 4: Simplify right side
    2,209.94x = 3,706,178.19
  5. Step 5: Solve for x
    x = 3,706,178.19/2,209.94
  6. Step 6: Final answer
    x = 1,677.05

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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.