Home / 2,204.65-3,042.43-1,209.90

Finding the Fourth Proportional to 2,204.65, 3,042.43 and 1,209.90

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Solution

The fourth proportional to 2,204.65, 3,042.43 and 1,209.90 is: 1,669.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,204.65 : 3,042.43 = 1,209.90 : x
  2. Step 2: Convert to fraction form
    2,204.65/3,042.43 = 1,209.90/x
  3. Step 3: Cross multiply
    2,204.65x = 3,042.43 × 1,209.90
  4. Step 4: Simplify right side
    2,204.65x = 3,681,044.44
  5. Step 5: Solve for x
    x = 3,681,044.44/2,204.65
  6. Step 6: Final answer
    x = 1,669.67

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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.