Home / 1,447.33-2,170.99-351.69

Finding the Fourth Proportional to 1,447.33, 2,170.99 and 351.69

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Solution

The fourth proportional to 1,447.33, 2,170.99 and 351.69 is: 527.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.33 : 2,170.99 = 351.69 : x
  2. Step 2: Convert to fraction form
    1,447.33/2,170.99 = 351.69/x
  3. Step 3: Cross multiply
    1,447.33x = 2,170.99 × 351.69
  4. Step 4: Simplify right side
    1,447.33x = 763,515.47
  5. Step 5: Solve for x
    x = 763,515.47/1,447.33
  6. Step 6: Final answer
    x = 527.53

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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.