Home / 3,361.15-5,041.05-1,279.72

Finding the Fourth Proportional to 3,361.15, 5,041.05 and 1,279.72

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Solution

The fourth proportional to 3,361.15, 5,041.05 and 1,279.72 is: 1,919.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,361.15 : 5,041.05 = 1,279.72 : x
  2. Step 2: Convert to fraction form
    3,361.15/5,041.05 = 1,279.72/x
  3. Step 3: Cross multiply
    3,361.15x = 5,041.05 × 1,279.72
  4. Step 4: Simplify right side
    3,361.15x = 6,451,132.51
  5. Step 5: Solve for x
    x = 6,451,132.51/3,361.15
  6. Step 6: Final answer
    x = 1,919.32

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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.