Home / 4,931.80-7,391.46-2,157.73

Finding the Fourth Proportional to 4,931.80, 7,391.46 and 2,157.73

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Solution

The fourth proportional to 4,931.80, 7,391.46 and 2,157.73 is: 3,233.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.80 : 7,391.46 = 2,157.73 : x
  2. Step 2: Convert to fraction form
    4,931.80/7,391.46 = 2,157.73/x
  3. Step 3: Cross multiply
    4,931.80x = 7,391.46 × 2,157.73
  4. Step 4: Simplify right side
    4,931.80x = 15,948,774.99
  5. Step 5: Solve for x
    x = 15,948,774.99/4,931.80
  6. Step 6: Final answer
    x = 3,233.86

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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.