Home / 1,218.18-1,827.27-352.49

Finding the Fourth Proportional to 1,218.18, 1,827.27 and 352.49

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Solution

The fourth proportional to 1,218.18, 1,827.27 and 352.49 is: 528.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218.18 : 1,827.27 = 352.49 : x
  2. Step 2: Convert to fraction form
    1,218.18/1,827.27 = 352.49/x
  3. Step 3: Cross multiply
    1,218.18x = 1,827.27 × 352.49
  4. Step 4: Simplify right side
    1,218.18x = 644,098.97
  5. Step 5: Solve for x
    x = 644,098.97/1,218.18
  6. Step 6: Final answer
    x = 528.74

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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.