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Finding the Fourth Proportional to 6,361.80, 8,777.88 and 4,003.08

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Solution

The fourth proportional to 6,361.80, 8,777.88 and 4,003.08 is: 5,523.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,361.80 : 8,777.88 = 4,003.08 : x
  2. Step 2: Convert to fraction form
    6,361.80/8,777.88 = 4,003.08/x
  3. Step 3: Cross multiply
    6,361.80x = 8,777.88 × 4,003.08
  4. Step 4: Simplify right side
    6,361.80x = 35,138,555.87
  5. Step 5: Solve for x
    x = 35,138,555.87/6,361.80
  6. Step 6: Final answer
    x = 5,523.37

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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.