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Finding the Fourth Proportional to 6,327.52, 8,731.95 and 3,638.92

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Solution

The fourth proportional to 6,327.52, 8,731.95 and 3,638.92 is: 5,021.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,327.52 : 8,731.95 = 3,638.92 : x
  2. Step 2: Convert to fraction form
    6,327.52/8,731.95 = 3,638.92/x
  3. Step 3: Cross multiply
    6,327.52x = 8,731.95 × 3,638.92
  4. Step 4: Simplify right side
    6,327.52x = 31,774,867.49
  5. Step 5: Solve for x
    x = 31,774,867.49/6,327.52
  6. Step 6: Final answer
    x = 5,021.69

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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.