Home / 5,436.96-8,150.56-2,147.84

Finding the Fourth Proportional to 5,436.96, 8,150.56 and 2,147.84

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Solution

The fourth proportional to 5,436.96, 8,150.56 and 2,147.84 is: 3,219.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.96 : 8,150.56 = 2,147.84 : x
  2. Step 2: Convert to fraction form
    5,436.96/8,150.56 = 2,147.84/x
  3. Step 3: Cross multiply
    5,436.96x = 8,150.56 × 2,147.84
  4. Step 4: Simplify right side
    5,436.96x = 17,506,098.79
  5. Step 5: Solve for x
    x = 17,506,098.79/5,436.96
  6. Step 6: Final answer
    x = 3,219.83

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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.