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Finding the Fourth Proportional to 7,019.88, 10,530 and 3,323.84

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Solution

The fourth proportional to 7,019.88, 10,530 and 3,323.84 is: 4,985.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,019.88 : 10,530 = 3,323.84 : x
  2. Step 2: Convert to fraction form
    7,019.88/10,530 = 3,323.84/x
  3. Step 3: Cross multiply
    7,019.88x = 10,530 × 3,323.84
  4. Step 4: Simplify right side
    7,019.88x = 35,000,035.20
  5. Step 5: Solve for x
    x = 35,000,035.20/7,019.88
  6. Step 6: Final answer
    x = 4,985.85

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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.