Home / 1,447.35-2,171.12-581.66

Finding the Fourth Proportional to 1,447.35, 2,171.12 and 581.66

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Solution

The fourth proportional to 1,447.35, 2,171.12 and 581.66 is: 872.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.35 : 2,171.12 = 581.66 : x
  2. Step 2: Convert to fraction form
    1,447.35/2,171.12 = 581.66/x
  3. Step 3: Cross multiply
    1,447.35x = 2,171.12 × 581.66
  4. Step 4: Simplify right side
    1,447.35x = 1,262,846.78
  5. Step 5: Solve for x
    x = 1,262,846.78/1,447.35
  6. Step 6: Final answer
    x = 872.53

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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.