Home / 3,212.27-4,432.44-1,868.18

Finding the Fourth Proportional to 3,212.27, 4,432.44 and 1,868.18

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Solution

The fourth proportional to 3,212.27, 4,432.44 and 1,868.18 is: 2,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.27 : 4,432.44 = 1,868.18 : x
  2. Step 2: Convert to fraction form
    3,212.27/4,432.44 = 1,868.18/x
  3. Step 3: Cross multiply
    3,212.27x = 4,432.44 × 1,868.18
  4. Step 4: Simplify right side
    3,212.27x = 8,280,595.03
  5. Step 5: Solve for x
    x = 8,280,595.03/3,212.27
  6. Step 6: Final answer
    x = 2,577.80

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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.