Home / 5,211.33-7,818.11-2,991.18

Finding the Fourth Proportional to 5,211.33, 7,818.11 and 2,991.18

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Solution

The fourth proportional to 5,211.33, 7,818.11 and 2,991.18 is: 4,487.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.33 : 7,818.11 = 2,991.18 : x
  2. Step 2: Convert to fraction form
    5,211.33/7,818.11 = 2,991.18/x
  3. Step 3: Cross multiply
    5,211.33x = 7,818.11 × 2,991.18
  4. Step 4: Simplify right side
    5,211.33x = 23,385,374.27
  5. Step 5: Solve for x
    x = 23,385,374.27/5,211.33
  6. Step 6: Final answer
    x = 4,487.41

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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.