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Finding the Fourth Proportional to 5,940.84, 8,911.08 and 2,478

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Solution

The fourth proportional to 5,940.84, 8,911.08 and 2,478 is: 3,716.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,940.84 : 8,911.08 = 2,478 : x
  2. Step 2: Convert to fraction form
    5,940.84/8,911.08 = 2,478/x
  3. Step 3: Cross multiply
    5,940.84x = 8,911.08 × 2,478
  4. Step 4: Simplify right side
    5,940.84x = 22,081,656.24
  5. Step 5: Solve for x
    x = 22,081,656.24/5,940.84
  6. Step 6: Final answer
    x = 3,716.92

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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.