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Finding the Fourth Proportional to 6,396.72, 8,827.56 and 3,602.28

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Solution

The fourth proportional to 6,396.72, 8,827.56 and 3,602.28 is: 4,971.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,396.72 : 8,827.56 = 3,602.28 : x
  2. Step 2: Convert to fraction form
    6,396.72/8,827.56 = 3,602.28/x
  3. Step 3: Cross multiply
    6,396.72x = 8,827.56 × 3,602.28
  4. Step 4: Simplify right side
    6,396.72x = 31,799,342.84
  5. Step 5: Solve for x
    x = 31,799,342.84/6,396.72
  6. Step 6: Final answer
    x = 4,971.20

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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.