Home / 1,481.08-2,221.54-556.57

Finding the Fourth Proportional to 1,481.08, 2,221.54 and 556.57

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Solution

The fourth proportional to 1,481.08, 2,221.54 and 556.57 is: 834.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.08 : 2,221.54 = 556.57 : x
  2. Step 2: Convert to fraction form
    1,481.08/2,221.54 = 556.57/x
  3. Step 3: Cross multiply
    1,481.08x = 2,221.54 × 556.57
  4. Step 4: Simplify right side
    1,481.08x = 1,236,434.54
  5. Step 5: Solve for x
    x = 1,236,434.54/1,481.08
  6. Step 6: Final answer
    x = 834.82

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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.