Home / 2,207.58-3,046.50-1,212.90

Finding the Fourth Proportional to 2,207.58, 3,046.50 and 1,212.90

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Solution

The fourth proportional to 2,207.58, 3,046.50 and 1,212.90 is: 1,673.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.58 : 3,046.50 = 1,212.90 : x
  2. Step 2: Convert to fraction form
    2,207.58/3,046.50 = 1,212.90/x
  3. Step 3: Cross multiply
    2,207.58x = 3,046.50 × 1,212.90
  4. Step 4: Simplify right side
    2,207.58x = 3,695,099.85
  5. Step 5: Solve for x
    x = 3,695,099.85/2,207.58
  6. Step 6: Final answer
    x = 1,673.82

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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.