Home / 2,212.10-3,052.71-1,217.45

Finding the Fourth Proportional to 2,212.10, 3,052.71 and 1,217.45

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Solution

The fourth proportional to 2,212.10, 3,052.71 and 1,217.45 is: 1,680.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.10 : 3,052.71 = 1,217.45 : x
  2. Step 2: Convert to fraction form
    2,212.10/3,052.71 = 1,217.45/x
  3. Step 3: Cross multiply
    2,212.10x = 3,052.71 × 1,217.45
  4. Step 4: Simplify right side
    2,212.10x = 3,716,506.53
  5. Step 5: Solve for x
    x = 3,716,506.53/2,212.10
  6. Step 6: Final answer
    x = 1,680.08

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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.