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Finding the Fourth Proportional to 6,361.03, 8,778.31 and 3,842.79

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Solution

The fourth proportional to 6,361.03, 8,778.31 and 3,842.79 is: 5,303.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,361.03 : 8,778.31 = 3,842.79 : x
  2. Step 2: Convert to fraction form
    6,361.03/8,778.31 = 3,842.79/x
  3. Step 3: Cross multiply
    6,361.03x = 8,778.31 × 3,842.79
  4. Step 4: Simplify right side
    6,361.03x = 33,733,138.78
  5. Step 5: Solve for x
    x = 33,733,138.78/6,361.03
  6. Step 6: Final answer
    x = 5,303.10

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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.