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Finding the Fourth Proportional to 6,322.95, 8,720.42 and 4,748.31

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Solution

The fourth proportional to 6,322.95, 8,720.42 and 4,748.31 is: 6,548.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,322.95 : 8,720.42 = 4,748.31 : x
  2. Step 2: Convert to fraction form
    6,322.95/8,720.42 = 4,748.31/x
  3. Step 3: Cross multiply
    6,322.95x = 8,720.42 × 4,748.31
  4. Step 4: Simplify right side
    6,322.95x = 41,407,257.49
  5. Step 5: Solve for x
    x = 41,407,257.49/6,322.95
  6. Step 6: Final answer
    x = 6,548.72

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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.