Home / 5,147.33-7,721.45-1,449.59

Finding the Fourth Proportional to 5,147.33, 7,721.45 and 1,449.59

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Solution

The fourth proportional to 5,147.33, 7,721.45 and 1,449.59 is: 2,174.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.33 : 7,721.45 = 1,449.59 : x
  2. Step 2: Convert to fraction form
    5,147.33/7,721.45 = 1,449.59/x
  3. Step 3: Cross multiply
    5,147.33x = 7,721.45 × 1,449.59
  4. Step 4: Simplify right side
    5,147.33x = 11,192,929.46
  5. Step 5: Solve for x
    x = 11,192,929.46/5,147.33
  6. Step 6: Final answer
    x = 2,174.51

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1.5x scale

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.