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Finding the Fourth Proportional to 6,551.55, 9,040.55 and 3,898.53

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Solution

The fourth proportional to 6,551.55, 9,040.55 and 3,898.53 is: 5,379.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,551.55 : 9,040.55 = 3,898.53 : x
  2. Step 2: Convert to fraction form
    6,551.55/9,040.55 = 3,898.53/x
  3. Step 3: Cross multiply
    6,551.55x = 9,040.55 × 3,898.53
  4. Step 4: Simplify right side
    6,551.55x = 35,244,835.90
  5. Step 5: Solve for x
    x = 35,244,835.90/6,551.55
  6. Step 6: Final answer
    x = 5,379.62

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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.