Home / 2,037.61-3,056.66-721.05

Finding the Fourth Proportional to 2,037.61, 3,056.66 and 721.05

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Solution

The fourth proportional to 2,037.61, 3,056.66 and 721.05 is: 1,081.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,037.61 : 3,056.66 = 721.05 : x
  2. Step 2: Convert to fraction form
    2,037.61/3,056.66 = 721.05/x
  3. Step 3: Cross multiply
    2,037.61x = 3,056.66 × 721.05
  4. Step 4: Simplify right side
    2,037.61x = 2,204,004.98
  5. Step 5: Solve for x
    x = 2,204,004.98/2,037.61
  6. Step 6: Final answer
    x = 1,081.66

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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.