Home / 1,335.16-2,002.43-361.34

Finding the Fourth Proportional to 1,335.16, 2,002.43 and 361.34

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Solution

The fourth proportional to 1,335.16, 2,002.43 and 361.34 is: 541.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335.16 : 2,002.43 = 361.34 : x
  2. Step 2: Convert to fraction form
    1,335.16/2,002.43 = 361.34/x
  3. Step 3: Cross multiply
    1,335.16x = 2,002.43 × 361.34
  4. Step 4: Simplify right side
    1,335.16x = 723,546.24
  5. Step 5: Solve for x
    x = 723,546.24/1,335.16
  6. Step 6: Final answer
    x = 541.92

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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.