Home / 2,251.21-3,376.86-1,212.07

Finding the Fourth Proportional to 2,251.21, 3,376.86 and 1,212.07

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Solution

The fourth proportional to 2,251.21, 3,376.86 and 1,212.07 is: 1,818.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.21 : 3,376.86 = 1,212.07 : x
  2. Step 2: Convert to fraction form
    2,251.21/3,376.86 = 1,212.07/x
  3. Step 3: Cross multiply
    2,251.21x = 3,376.86 × 1,212.07
  4. Step 4: Simplify right side
    2,251.21x = 4,092,990.70
  5. Step 5: Solve for x
    x = 4,092,990.70/2,251.21
  6. Step 6: Final answer
    x = 1,818.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.