Home / 3,207.42-4,815.90-1,971.27

Finding the Fourth Proportional to 3,207.42, 4,815.90 and 1,971.27

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Solution

The fourth proportional to 3,207.42, 4,815.90 and 1,971.27 is: 2,959.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.42 : 4,815.90 = 1,971.27 : x
  2. Step 2: Convert to fraction form
    3,207.42/4,815.90 = 1,971.27/x
  3. Step 3: Cross multiply
    3,207.42x = 4,815.90 × 1,971.27
  4. Step 4: Simplify right side
    3,207.42x = 9,493,439.19
  5. Step 5: Solve for x
    x = 9,493,439.19/3,207.42
  6. Step 6: Final answer
    x = 2,959.84

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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.