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Finding the Fourth Proportional to 7,236, 10,860.12 and 3,293.20

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Solution

The fourth proportional to 7,236, 10,860.12 and 3,293.20 is: 4,942.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,236 : 10,860.12 = 3,293.20 : x
  2. Step 2: Convert to fraction form
    7,236/10,860.12 = 3,293.20/x
  3. Step 3: Cross multiply
    7,236x = 10,860.12 × 3,293.20
  4. Step 4: Simplify right side
    7,236x = 35,764,547.18
  5. Step 5: Solve for x
    x = 35,764,547.18/7,236
  6. Step 6: Final answer
    x = 4,942.59

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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.