Home / 5,242.28-7,234.50-2,884.57

Finding the Fourth Proportional to 5,242.28, 7,234.50 and 2,884.57

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Solution

The fourth proportional to 5,242.28, 7,234.50 and 2,884.57 is: 3,980.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.28 : 7,234.50 = 2,884.57 : x
  2. Step 2: Convert to fraction form
    5,242.28/7,234.50 = 2,884.57/x
  3. Step 3: Cross multiply
    5,242.28x = 7,234.50 × 2,884.57
  4. Step 4: Simplify right side
    5,242.28x = 20,868,421.67
  5. Step 5: Solve for x
    x = 20,868,421.67/5,242.28
  6. Step 6: Final answer
    x = 3,980.79

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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.