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Finding the Fourth Proportional to 6,372.18, 8,797.86 and 3,985.77

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Solution

The fourth proportional to 6,372.18, 8,797.86 and 3,985.77 is: 5,503.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,372.18 : 8,797.86 = 3,985.77 : x
  2. Step 2: Convert to fraction form
    6,372.18/8,797.86 = 3,985.77/x
  3. Step 3: Cross multiply
    6,372.18x = 8,797.86 × 3,985.77
  4. Step 4: Simplify right side
    6,372.18x = 35,066,246.45
  5. Step 5: Solve for x
    x = 35,066,246.45/6,372.18
  6. Step 6: Final answer
    x = 5,503.02

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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.