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Finding the Fourth Proportional to 6,368.83, 8,787.63 and 3,850.44

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Solution

The fourth proportional to 6,368.83, 8,787.63 and 3,850.44 is: 5,312.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.83 : 8,787.63 = 3,850.44 : x
  2. Step 2: Convert to fraction form
    6,368.83/8,787.63 = 3,850.44/x
  3. Step 3: Cross multiply
    6,368.83x = 8,787.63 × 3,850.44
  4. Step 4: Simplify right side
    6,368.83x = 33,836,242.06
  5. Step 5: Solve for x
    x = 33,836,242.06/6,368.83
  6. Step 6: Final answer
    x = 5,312.79

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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.