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Finding the Fourth Proportional to 6,787.36, 9,366.28 and 3,954.88

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Solution

The fourth proportional to 6,787.36, 9,366.28 and 3,954.88 is: 5,457.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,787.36 : 9,366.28 = 3,954.88 : x
  2. Step 2: Convert to fraction form
    6,787.36/9,366.28 = 3,954.88/x
  3. Step 3: Cross multiply
    6,787.36x = 9,366.28 × 3,954.88
  4. Step 4: Simplify right side
    6,787.36x = 37,042,513.45
  5. Step 5: Solve for x
    x = 37,042,513.45/6,787.36
  6. Step 6: Final answer
    x = 5,457.57

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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.