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Finding the Fourth Proportional to 6,643.73, 9,168 and 3,810.54

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Solution

The fourth proportional to 6,643.73, 9,168 and 3,810.54 is: 5,258.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.73 : 9,168 = 3,810.54 : x
  2. Step 2: Convert to fraction form
    6,643.73/9,168 = 3,810.54/x
  3. Step 3: Cross multiply
    6,643.73x = 9,168 × 3,810.54
  4. Step 4: Simplify right side
    6,643.73x = 34,935,030.72
  5. Step 5: Solve for x
    x = 34,935,030.72/6,643.73
  6. Step 6: Final answer
    x = 5,258.35

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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.