Home / 5,147.29-7,720.44-1,449.46

Finding the Fourth Proportional to 5,147.29, 7,720.44 and 1,449.46

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Solution

The fourth proportional to 5,147.29, 7,720.44 and 1,449.46 is: 2,174.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.29 : 7,720.44 = 1,449.46 : x
  2. Step 2: Convert to fraction form
    5,147.29/7,720.44 = 1,449.46/x
  3. Step 3: Cross multiply
    5,147.29x = 7,720.44 × 1,449.46
  4. Step 4: Simplify right side
    5,147.29x = 11,190,468.96
  5. Step 5: Solve for x
    x = 11,190,468.96/5,147.29
  6. Step 6: Final answer
    x = 2,174.05

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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.