Home / 1,335.15-2,002.41-361.02

Finding the Fourth Proportional to 1,335.15, 2,002.41 and 361.02

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Solution

The fourth proportional to 1,335.15, 2,002.41 and 361.02 is: 541.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335.15 : 2,002.41 = 361.02 : x
  2. Step 2: Convert to fraction form
    1,335.15/2,002.41 = 361.02/x
  3. Step 3: Cross multiply
    1,335.15x = 2,002.41 × 361.02
  4. Step 4: Simplify right side
    1,335.15x = 722,910.06
  5. Step 5: Solve for x
    x = 722,910.06/1,335.15
  6. Step 6: Final answer
    x = 541.44

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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.