Home / 2,206.88-3,044.89-1,421.38

Finding the Fourth Proportional to 2,206.88, 3,044.89 and 1,421.38

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Solution

The fourth proportional to 2,206.88, 3,044.89 and 1,421.38 is: 1,961.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.88 : 3,044.89 = 1,421.38 : x
  2. Step 2: Convert to fraction form
    2,206.88/3,044.89 = 1,421.38/x
  3. Step 3: Cross multiply
    2,206.88x = 3,044.89 × 1,421.38
  4. Step 4: Simplify right side
    2,206.88x = 4,327,951.33
  5. Step 5: Solve for x
    x = 4,327,951.33/2,206.88
  6. Step 6: Final answer
    x = 1,961.12

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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.