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Finding the Fourth Proportional to 6,368.58, 8,787.29 and 3,850.20

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Solution

The fourth proportional to 6,368.58, 8,787.29 and 3,850.20 is: 5,312.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.58 : 8,787.29 = 3,850.20 : x
  2. Step 2: Convert to fraction form
    6,368.58/8,787.29 = 3,850.20/x
  3. Step 3: Cross multiply
    6,368.58x = 8,787.29 × 3,850.20
  4. Step 4: Simplify right side
    6,368.58x = 33,832,804.71
  5. Step 5: Solve for x
    x = 33,832,804.71/6,368.58
  6. Step 6: Final answer
    x = 5,312.46

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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.