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Finding the Fourth Proportional to 6,615.97, 9,130.02 and 3,631.75

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Solution

The fourth proportional to 6,615.97, 9,130.02 and 3,631.75 is: 5,011.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.97 : 9,130.02 = 3,631.75 : x
  2. Step 2: Convert to fraction form
    6,615.97/9,130.02 = 3,631.75/x
  3. Step 3: Cross multiply
    6,615.97x = 9,130.02 × 3,631.75
  4. Step 4: Simplify right side
    6,615.97x = 33,157,950.14
  5. Step 5: Solve for x
    x = 33,157,950.14/6,615.97
  6. Step 6: Final answer
    x = 5,011.80

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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.