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Finding the Fourth Proportional to 6,424.55, 9,638.54 and 2,726.99

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Solution

The fourth proportional to 6,424.55, 9,638.54 and 2,726.99 is: 4,091.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,424.55 : 9,638.54 = 2,726.99 : x
  2. Step 2: Convert to fraction form
    6,424.55/9,638.54 = 2,726.99/x
  3. Step 3: Cross multiply
    6,424.55x = 9,638.54 × 2,726.99
  4. Step 4: Simplify right side
    6,424.55x = 26,284,202.19
  5. Step 5: Solve for x
    x = 26,284,202.19/6,424.55
  6. Step 6: Final answer
    x = 4,091.21

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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.