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Finding the Fourth Proportional to 6,603.62, 9,905.73 and 3,679.72

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Solution

The fourth proportional to 6,603.62, 9,905.73 and 3,679.72 is: 5,519.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603.62 : 9,905.73 = 3,679.72 : x
  2. Step 2: Convert to fraction form
    6,603.62/9,905.73 = 3,679.72/x
  3. Step 3: Cross multiply
    6,603.62x = 9,905.73 × 3,679.72
  4. Step 4: Simplify right side
    6,603.62x = 36,450,312.80
  5. Step 5: Solve for x
    x = 36,450,312.80/6,603.62
  6. Step 6: Final answer
    x = 5,519.75

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1.5x scale

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.