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Finding the Fourth Proportional to 6,361.92, 9,543.79 and 1,979.82

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Solution

The fourth proportional to 6,361.92, 9,543.79 and 1,979.82 is: 2,970.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,361.92 : 9,543.79 = 1,979.82 : x
  2. Step 2: Convert to fraction form
    6,361.92/9,543.79 = 1,979.82/x
  3. Step 3: Cross multiply
    6,361.92x = 9,543.79 × 1,979.82
  4. Step 4: Simplify right side
    6,361.92x = 18,894,988.79
  5. Step 5: Solve for x
    x = 18,894,988.79/6,361.92
  6. Step 6: Final answer
    x = 2,970.01

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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.