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Finding the Fourth Proportional to 5,940.78, 8,911.53 and 3,473.70

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Solution

The fourth proportional to 5,940.78, 8,911.53 and 3,473.70 is: 5,210.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,940.78 : 8,911.53 = 3,473.70 : x
  2. Step 2: Convert to fraction form
    5,940.78/8,911.53 = 3,473.70/x
  3. Step 3: Cross multiply
    5,940.78x = 8,911.53 × 3,473.70
  4. Step 4: Simplify right side
    5,940.78x = 30,955,981.76
  5. Step 5: Solve for x
    x = 30,955,981.76/5,940.78
  6. Step 6: Final answer
    x = 5,210.76

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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.