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Finding the Fourth Proportional to 6,361.45, 8,783.15 and 3,975.06

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Solution

The fourth proportional to 6,361.45, 8,783.15 and 3,975.06 is: 5,488.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,361.45 : 8,783.15 = 3,975.06 : x
  2. Step 2: Convert to fraction form
    6,361.45/8,783.15 = 3,975.06/x
  3. Step 3: Cross multiply
    6,361.45x = 8,783.15 × 3,975.06
  4. Step 4: Simplify right side
    6,361.45x = 34,913,548.24
  5. Step 5: Solve for x
    x = 34,913,548.24/6,361.45
  6. Step 6: Final answer
    x = 5,488.30

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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.