Home / 1,660.73-2,293.99-1,272.53

Finding the Fourth Proportional to 1,660.73, 2,293.99 and 1,272.53

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Solution

The fourth proportional to 1,660.73, 2,293.99 and 1,272.53 is: 1,757.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660.73 : 2,293.99 = 1,272.53 : x
  2. Step 2: Convert to fraction form
    1,660.73/2,293.99 = 1,272.53/x
  3. Step 3: Cross multiply
    1,660.73x = 2,293.99 × 1,272.53
  4. Step 4: Simplify right side
    1,660.73x = 2,919,173.65
  5. Step 5: Solve for x
    x = 2,919,173.65/1,660.73
  6. Step 6: Final answer
    x = 1,757.77

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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.