Home / 3,211.50-4,432.18-2,016.68

Finding the Fourth Proportional to 3,211.50, 4,432.18 and 2,016.68

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Solution

The fourth proportional to 3,211.50, 4,432.18 and 2,016.68 is: 2,783.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.50 : 4,432.18 = 2,016.68 : x
  2. Step 2: Convert to fraction form
    3,211.50/4,432.18 = 2,016.68/x
  3. Step 3: Cross multiply
    3,211.50x = 4,432.18 × 2,016.68
  4. Step 4: Simplify right side
    3,211.50x = 8,938,288.76
  5. Step 5: Solve for x
    x = 8,938,288.76/3,211.50
  6. Step 6: Final answer
    x = 2,783.21

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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.