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Finding the Fourth Proportional to 6,369.41, 8,788.93 and 3,643.90

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Solution

The fourth proportional to 6,369.41, 8,788.93 and 3,643.90 is: 5,028.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,369.41 : 8,788.93 = 3,643.90 : x
  2. Step 2: Convert to fraction form
    6,369.41/8,788.93 = 3,643.90/x
  3. Step 3: Cross multiply
    6,369.41x = 8,788.93 × 3,643.90
  4. Step 4: Simplify right side
    6,369.41x = 32,025,973.55
  5. Step 5: Solve for x
    x = 32,025,973.55/6,369.41
  6. Step 6: Final answer
    x = 5,028.09

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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.