Home / 5,744.42-7,931.44-3,972.96

Finding the Fourth Proportional to 5,744.42, 7,931.44 and 3,972.96

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Solution

The fourth proportional to 5,744.42, 7,931.44 and 3,972.96 is: 5,485.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,744.42 : 7,931.44 = 3,972.96 : x
  2. Step 2: Convert to fraction form
    5,744.42/7,931.44 = 3,972.96/x
  3. Step 3: Cross multiply
    5,744.42x = 7,931.44 × 3,972.96
  4. Step 4: Simplify right side
    5,744.42x = 31,511,293.86
  5. Step 5: Solve for x
    x = 31,511,293.86/5,744.42
  6. Step 6: Final answer
    x = 5,485.55

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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.