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Finding the Fourth Proportional to 6,398.55, 8,827.16 and 3,744.45

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Solution

The fourth proportional to 6,398.55, 8,827.16 and 3,744.45 is: 5,165.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398.55 : 8,827.16 = 3,744.45 : x
  2. Step 2: Convert to fraction form
    6,398.55/8,827.16 = 3,744.45/x
  3. Step 3: Cross multiply
    6,398.55x = 8,827.16 × 3,744.45
  4. Step 4: Simplify right side
    6,398.55x = 33,052,840.54
  5. Step 5: Solve for x
    x = 33,052,840.54/6,398.55
  6. Step 6: Final answer
    x = 5,165.68

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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.