Home / 5,147.08-7,721.80-1,449.23

Finding the Fourth Proportional to 5,147.08, 7,721.80 and 1,449.23

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Solution

The fourth proportional to 5,147.08, 7,721.80 and 1,449.23 is: 2,174.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.08 : 7,721.80 = 1,449.23 : x
  2. Step 2: Convert to fraction form
    5,147.08/7,721.80 = 1,449.23/x
  3. Step 3: Cross multiply
    5,147.08x = 7,721.80 × 1,449.23
  4. Step 4: Simplify right side
    5,147.08x = 11,190,621.98
  5. Step 5: Solve for x
    x = 11,190,621.98/5,147.08
  6. Step 6: Final answer
    x = 2,174.17

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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.