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Finding the Fourth Proportional to 4,611.03, 6,912.04 and 1,979.22

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Solution

The fourth proportional to 4,611.03, 6,912.04 and 1,979.22 is: 2,966.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,611.03 : 6,912.04 = 1,979.22 : x
  2. Step 2: Convert to fraction form
    4,611.03/6,912.04 = 1,979.22/x
  3. Step 3: Cross multiply
    4,611.03x = 6,912.04 × 1,979.22
  4. Step 4: Simplify right side
    4,611.03x = 13,680,447.81
  5. Step 5: Solve for x
    x = 13,680,447.81/4,611.03
  6. Step 6: Final answer
    x = 2,966.90

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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.