Home / 5,242.31-7,234.44-2,884.50

Finding the Fourth Proportional to 5,242.31, 7,234.44 and 2,884.50

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Solution

The fourth proportional to 5,242.31, 7,234.44 and 2,884.50 is: 3,980.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.31 : 7,234.44 = 2,884.50 : x
  2. Step 2: Convert to fraction form
    5,242.31/7,234.44 = 2,884.50/x
  3. Step 3: Cross multiply
    5,242.31x = 7,234.44 × 2,884.50
  4. Step 4: Simplify right side
    5,242.31x = 20,867,774.72
  5. Step 5: Solve for x
    x = 20,867,774.72/5,242.31
  6. Step 6: Final answer
    x = 3,980.64

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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.