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Finding the Fourth Proportional to 3,960.82, 5,946.36 and 3,387.34

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Solution

The fourth proportional to 3,960.82, 5,946.36 and 3,387.34 is: 5,085.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.82 : 5,946.36 = 3,387.34 : x
  2. Step 2: Convert to fraction form
    3,960.82/5,946.36 = 3,387.34/x
  3. Step 3: Cross multiply
    3,960.82x = 5,946.36 × 3,387.34
  4. Step 4: Simplify right side
    3,960.82x = 20,142,343.08
  5. Step 5: Solve for x
    x = 20,142,343.08/3,960.82
  6. Step 6: Final answer
    x = 5,085.40

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1.5x scale

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.