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Finding the Fourth Proportional to 6,489.36, 8,952.63 and 4,791.93

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Solution

The fourth proportional to 6,489.36, 8,952.63 and 4,791.93 is: 6,610.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,489.36 : 8,952.63 = 4,791.93 : x
  2. Step 2: Convert to fraction form
    6,489.36/8,952.63 = 4,791.93/x
  3. Step 3: Cross multiply
    6,489.36x = 8,952.63 × 4,791.93
  4. Step 4: Simplify right side
    6,489.36x = 42,900,376.28
  5. Step 5: Solve for x
    x = 42,900,376.28/6,489.36
  6. Step 6: Final answer
    x = 6,610.88

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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.