Home / 1,227.48-1,841.35-361.79

Finding the Fourth Proportional to 1,227.48, 1,841.35 and 361.79

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Solution

The fourth proportional to 1,227.48, 1,841.35 and 361.79 is: 542.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227.48 : 1,841.35 = 361.79 : x
  2. Step 2: Convert to fraction form
    1,227.48/1,841.35 = 361.79/x
  3. Step 3: Cross multiply
    1,227.48x = 1,841.35 × 361.79
  4. Step 4: Simplify right side
    1,227.48x = 666,182.02
  5. Step 5: Solve for x
    x = 666,182.02/1,227.48
  6. Step 6: Final answer
    x = 542.72

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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.