Home / 7,243.30-10,861.28-3,539.98

Finding the Fourth Proportional to 7,243.30, 10,861.28 and 3,539.98

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Solution

The fourth proportional to 7,243.30, 10,861.28 and 3,539.98 is: 5,308.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243.30 : 10,861.28 = 3,539.98 : x
  2. Step 2: Convert to fraction form
    7,243.30/10,861.28 = 3,539.98/x
  3. Step 3: Cross multiply
    7,243.30x = 10,861.28 × 3,539.98
  4. Step 4: Simplify right side
    7,243.30x = 38,448,713.97
  5. Step 5: Solve for x
    x = 38,448,713.97/7,243.30
  6. Step 6: Final answer
    x = 5,308.18

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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.