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Finding the Fourth Proportional to 6,364.92, 9,549 and 1,982.40

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Solution

The fourth proportional to 6,364.92, 9,549 and 1,982.40 is: 2,974.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,364.92 : 9,549 = 1,982.40 : x
  2. Step 2: Convert to fraction form
    6,364.92/9,549 = 1,982.40/x
  3. Step 3: Cross multiply
    6,364.92x = 9,549 × 1,982.40
  4. Step 4: Simplify right side
    6,364.92x = 18,929,937.60
  5. Step 5: Solve for x
    x = 18,929,937.60/6,364.92
  6. Step 6: Final answer
    x = 2,974.10

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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.