Home / 1,218.14-1,827.24-352.52

Finding the Fourth Proportional to 1,218.14, 1,827.24 and 352.52

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Solution

The fourth proportional to 1,218.14, 1,827.24 and 352.52 is: 528.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218.14 : 1,827.24 = 352.52 : x
  2. Step 2: Convert to fraction form
    1,218.14/1,827.24 = 352.52/x
  3. Step 3: Cross multiply
    1,218.14x = 1,827.24 × 352.52
  4. Step 4: Simplify right side
    1,218.14x = 644,138.64
  5. Step 5: Solve for x
    x = 644,138.64/1,218.14
  6. Step 6: Final answer
    x = 528.79

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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.