Home / 3,006.56-4,149.05-1,680.31

Finding the Fourth Proportional to 3,006.56, 4,149.05 and 1,680.31

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Solution

The fourth proportional to 3,006.56, 4,149.05 and 1,680.31 is: 2,318.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,006.56 : 4,149.05 = 1,680.31 : x
  2. Step 2: Convert to fraction form
    3,006.56/4,149.05 = 1,680.31/x
  3. Step 3: Cross multiply
    3,006.56x = 4,149.05 × 1,680.31
  4. Step 4: Simplify right side
    3,006.56x = 6,971,690.21
  5. Step 5: Solve for x
    x = 6,971,690.21/3,006.56
  6. Step 6: Final answer
    x = 2,318.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.