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Finding the Fourth Proportional to 5,878.96, 8,112 and 3,361.12

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Solution

The fourth proportional to 5,878.96, 8,112 and 3,361.12 is: 4,637.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,878.96 : 8,112 = 3,361.12 : x
  2. Step 2: Convert to fraction form
    5,878.96/8,112 = 3,361.12/x
  3. Step 3: Cross multiply
    5,878.96x = 8,112 × 3,361.12
  4. Step 4: Simplify right side
    5,878.96x = 27,265,405.44
  5. Step 5: Solve for x
    x = 27,265,405.44/5,878.96
  6. Step 6: Final answer
    x = 4,637.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.