Home / 1,447.45-2,171.14-351.82

Finding the Fourth Proportional to 1,447.45, 2,171.14 and 351.82

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Solution

The fourth proportional to 1,447.45, 2,171.14 and 351.82 is: 527.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.45 : 2,171.14 = 351.82 : x
  2. Step 2: Convert to fraction form
    1,447.45/2,171.14 = 351.82/x
  3. Step 3: Cross multiply
    1,447.45x = 2,171.14 × 351.82
  4. Step 4: Simplify right side
    1,447.45x = 763,845.05
  5. Step 5: Solve for x
    x = 763,845.05/1,447.45
  6. Step 6: Final answer
    x = 527.72

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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.