Home / 2,212.26-3,316.85-1,587.94

Finding the Fourth Proportional to 2,212.26, 3,316.85 and 1,587.94

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Solution

The fourth proportional to 2,212.26, 3,316.85 and 1,587.94 is: 2,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.26 : 3,316.85 = 1,587.94 : x
  2. Step 2: Convert to fraction form
    2,212.26/3,316.85 = 1,587.94/x
  3. Step 3: Cross multiply
    2,212.26x = 3,316.85 × 1,587.94
  4. Step 4: Simplify right side
    2,212.26x = 5,266,958.79
  5. Step 5: Solve for x
    x = 5,266,958.79/2,212.26
  6. Step 6: Final answer
    x = 2,380.80

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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.