Home / 2,212.93-3,312.18-1,627.78

Finding the Fourth Proportional to 2,212.93, 3,312.18 and 1,627.78

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Solution

The fourth proportional to 2,212.93, 3,312.18 and 1,627.78 is: 2,436.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.93 : 3,312.18 = 1,627.78 : x
  2. Step 2: Convert to fraction form
    2,212.93/3,312.18 = 1,627.78/x
  3. Step 3: Cross multiply
    2,212.93x = 3,312.18 × 1,627.78
  4. Step 4: Simplify right side
    2,212.93x = 5,391,500.36
  5. Step 5: Solve for x
    x = 5,391,500.36/2,212.93
  6. Step 6: Final answer
    x = 2,436.36

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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.