Home / 1,447.03-2,170.52-351.40

Finding the Fourth Proportional to 1,447.03, 2,170.52 and 351.40

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Solution

The fourth proportional to 1,447.03, 2,170.52 and 351.40 is: 527.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.03 : 2,170.52 = 351.40 : x
  2. Step 2: Convert to fraction form
    1,447.03/2,170.52 = 351.40/x
  3. Step 3: Cross multiply
    1,447.03x = 2,170.52 × 351.40
  4. Step 4: Simplify right side
    1,447.03x = 762,722.97
  5. Step 5: Solve for x
    x = 762,722.97/1,447.03
  6. Step 6: Final answer
    x = 527.10

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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.