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Finding the Fourth Proportional to 6,360.81, 9,540.60 and 3,894.36

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Solution

The fourth proportional to 6,360.81, 9,540.60 and 3,894.36 is: 5,841.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,360.81 : 9,540.60 = 3,894.36 : x
  2. Step 2: Convert to fraction form
    6,360.81/9,540.60 = 3,894.36/x
  3. Step 3: Cross multiply
    6,360.81x = 9,540.60 × 3,894.36
  4. Step 4: Simplify right side
    6,360.81x = 37,154,531.02
  5. Step 5: Solve for x
    x = 37,154,531.02/6,360.81
  6. Step 6: Final answer
    x = 5,841.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.