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Finding the Fourth Proportional to 6,328.72, 8,727.14 and 4,203.48

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Solution

The fourth proportional to 6,328.72, 8,727.14 and 4,203.48 is: 5,796.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,328.72 : 8,727.14 = 4,203.48 : x
  2. Step 2: Convert to fraction form
    6,328.72/8,727.14 = 4,203.48/x
  3. Step 3: Cross multiply
    6,328.72x = 8,727.14 × 4,203.48
  4. Step 4: Simplify right side
    6,328.72x = 36,684,358.45
  5. Step 5: Solve for x
    x = 36,684,358.45/6,328.72
  6. Step 6: Final answer
    x = 5,796.49

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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.