Home / 1,447.14-2,170.70-351.52

Finding the Fourth Proportional to 1,447.14, 2,170.70 and 351.52

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Solution

The fourth proportional to 1,447.14, 2,170.70 and 351.52 is: 527.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.14 : 2,170.70 = 351.52 : x
  2. Step 2: Convert to fraction form
    1,447.14/2,170.70 = 351.52/x
  3. Step 3: Cross multiply
    1,447.14x = 2,170.70 × 351.52
  4. Step 4: Simplify right side
    1,447.14x = 763,044.46
  5. Step 5: Solve for x
    x = 763,044.46/1,447.14
  6. Step 6: Final answer
    x = 527.28

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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.