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Finding the Fourth Proportional to 6,425.72, 8,868.11 and 3,773.06

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Solution

The fourth proportional to 6,425.72, 8,868.11 and 3,773.06 is: 5,207.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,425.72 : 8,868.11 = 3,773.06 : x
  2. Step 2: Convert to fraction form
    6,425.72/8,868.11 = 3,773.06/x
  3. Step 3: Cross multiply
    6,425.72x = 8,868.11 × 3,773.06
  4. Step 4: Simplify right side
    6,425.72x = 33,459,911.12
  5. Step 5: Solve for x
    x = 33,459,911.12/6,425.72
  6. Step 6: Final answer
    x = 5,207.18

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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.