Home / 2,209.40-3,048.79-1,214.61

Finding the Fourth Proportional to 2,209.40, 3,048.79 and 1,214.61

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Solution

The fourth proportional to 2,209.40, 3,048.79 and 1,214.61 is: 1,676.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.40 : 3,048.79 = 1,214.61 : x
  2. Step 2: Convert to fraction form
    2,209.40/3,048.79 = 1,214.61/x
  3. Step 3: Cross multiply
    2,209.40x = 3,048.79 × 1,214.61
  4. Step 4: Simplify right side
    2,209.40x = 3,703,087.79
  5. Step 5: Solve for x
    x = 3,703,087.79/2,209.40
  6. Step 6: Final answer
    x = 1,676.06

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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.