Home / 2,212.01-3,052.70-1,217.50

Finding the Fourth Proportional to 2,212.01, 3,052.70 and 1,217.50

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Solution

The fourth proportional to 2,212.01, 3,052.70 and 1,217.50 is: 1,680.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.01 : 3,052.70 = 1,217.50 : x
  2. Step 2: Convert to fraction form
    2,212.01/3,052.70 = 1,217.50/x
  3. Step 3: Cross multiply
    2,212.01x = 3,052.70 × 1,217.50
  4. Step 4: Simplify right side
    2,212.01x = 3,716,672.93
  5. Step 5: Solve for x
    x = 3,716,672.93/2,212.01
  6. Step 6: Final answer
    x = 1,680.23

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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.