Home / 2,728.67-3,766.14-1,666.62

Finding the Fourth Proportional to 2,728.67, 3,766.14 and 1,666.62

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Solution

The fourth proportional to 2,728.67, 3,766.14 and 1,666.62 is: 2,300.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.67 : 3,766.14 = 1,666.62 : x
  2. Step 2: Convert to fraction form
    2,728.67/3,766.14 = 1,666.62/x
  3. Step 3: Cross multiply
    2,728.67x = 3,766.14 × 1,666.62
  4. Step 4: Simplify right side
    2,728.67x = 6,276,724.25
  5. Step 5: Solve for x
    x = 6,276,724.25/2,728.67
  6. Step 6: Final answer
    x = 2,300.29

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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.