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Finding the Fourth Proportional to 6,368.08, 8,787.81 and 3,715.75

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Solution

The fourth proportional to 6,368.08, 8,787.81 and 3,715.75 is: 5,127.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.08 : 8,787.81 = 3,715.75 : x
  2. Step 2: Convert to fraction form
    6,368.08/8,787.81 = 3,715.75/x
  3. Step 3: Cross multiply
    6,368.08x = 8,787.81 × 3,715.75
  4. Step 4: Simplify right side
    6,368.08x = 32,653,305.01
  5. Step 5: Solve for x
    x = 32,653,305.01/6,368.08
  6. Step 6: Final answer
    x = 5,127.65

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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.