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Finding the Fourth Proportional to 6,369.36, 8,787.73 and 3,680.24

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Solution

The fourth proportional to 6,369.36, 8,787.73 and 3,680.24 is: 5,077.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,369.36 : 8,787.73 = 3,680.24 : x
  2. Step 2: Convert to fraction form
    6,369.36/8,787.73 = 3,680.24/x
  3. Step 3: Cross multiply
    6,369.36x = 8,787.73 × 3,680.24
  4. Step 4: Simplify right side
    6,369.36x = 32,340,955.46
  5. Step 5: Solve for x
    x = 32,340,955.46/6,369.36
  6. Step 6: Final answer
    x = 5,077.58

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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.