Home / 2,212.62-3,319.34-1,903.61

Finding the Fourth Proportional to 2,212.62, 3,319.34 and 1,903.61

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Solution

The fourth proportional to 2,212.62, 3,319.34 and 1,903.61 is: 2,855.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.62 : 3,319.34 = 1,903.61 : x
  2. Step 2: Convert to fraction form
    2,212.62/3,319.34 = 1,903.61/x
  3. Step 3: Cross multiply
    2,212.62x = 3,319.34 × 1,903.61
  4. Step 4: Simplify right side
    2,212.62x = 6,318,702.70
  5. Step 5: Solve for x
    x = 6,318,702.70/2,212.62
  6. Step 6: Final answer
    x = 2,855.76

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1.5x scale

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.