Home / 2,037.90-3,056.75-721.25

Finding the Fourth Proportional to 2,037.90, 3,056.75 and 721.25

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Solution

The fourth proportional to 2,037.90, 3,056.75 and 721.25 is: 1,081.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,037.90 : 3,056.75 = 721.25 : x
  2. Step 2: Convert to fraction form
    2,037.90/3,056.75 = 721.25/x
  3. Step 3: Cross multiply
    2,037.90x = 3,056.75 × 721.25
  4. Step 4: Simplify right side
    2,037.90x = 2,204,662.05
  5. Step 5: Solve for x
    x = 2,204,662.05/2,037.90
  6. Step 6: Final answer
    x = 1,081.83

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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.