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Finding the Fourth Proportional to 6,469.88, 8,928.24 and 3,637.28

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Solution

The fourth proportional to 6,469.88, 8,928.24 and 3,637.28 is: 5,019.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,469.88 : 8,928.24 = 3,637.28 : x
  2. Step 2: Convert to fraction form
    6,469.88/8,928.24 = 3,637.28/x
  3. Step 3: Cross multiply
    6,469.88x = 8,928.24 × 3,637.28
  4. Step 4: Simplify right side
    6,469.88x = 32,474,508.79
  5. Step 5: Solve for x
    x = 32,474,508.79/6,469.88
  6. Step 6: Final answer
    x = 5,019.34

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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.