Home / 2,206.12-3,044.40-1,211.39

Finding the Fourth Proportional to 2,206.12, 3,044.40 and 1,211.39

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Solution

The fourth proportional to 2,206.12, 3,044.40 and 1,211.39 is: 1,671.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.12 : 3,044.40 = 1,211.39 : x
  2. Step 2: Convert to fraction form
    2,206.12/3,044.40 = 1,211.39/x
  3. Step 3: Cross multiply
    2,206.12x = 3,044.40 × 1,211.39
  4. Step 4: Simplify right side
    2,206.12x = 3,687,955.72
  5. Step 5: Solve for x
    x = 3,687,955.72/2,206.12
  6. Step 6: Final answer
    x = 1,671.69

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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.