Home / 2,212.62-3,053.58-1,281.12

Finding the Fourth Proportional to 2,212.62, 3,053.58 and 1,281.12

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Solution

The fourth proportional to 2,212.62, 3,053.58 and 1,281.12 is: 1,768.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.62 : 3,053.58 = 1,281.12 : x
  2. Step 2: Convert to fraction form
    2,212.62/3,053.58 = 1,281.12/x
  3. Step 3: Cross multiply
    2,212.62x = 3,053.58 × 1,281.12
  4. Step 4: Simplify right side
    2,212.62x = 3,912,002.41
  5. Step 5: Solve for x
    x = 3,912,002.41/2,212.62
  6. Step 6: Final answer
    x = 1,768.04

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1.5x scale

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.