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Finding the Fourth Proportional to 6,553.82, 9,040.14 and 3,899.25

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Solution

The fourth proportional to 6,553.82, 9,040.14 and 3,899.25 is: 5,378.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,553.82 : 9,040.14 = 3,899.25 : x
  2. Step 2: Convert to fraction form
    6,553.82/9,040.14 = 3,899.25/x
  3. Step 3: Cross multiply
    6,553.82x = 9,040.14 × 3,899.25
  4. Step 4: Simplify right side
    6,553.82x = 35,249,765.90
  5. Step 5: Solve for x
    x = 35,249,765.90/6,553.82
  6. Step 6: Final answer
    x = 5,378.50

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1.5x scale

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.