Home / 2,662.29-3,986.44-1,878.04

Finding the Fourth Proportional to 2,662.29, 3,986.44 and 1,878.04

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Solution

The fourth proportional to 2,662.29, 3,986.44 and 1,878.04 is: 2,812.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,662.29 : 3,986.44 = 1,878.04 : x
  2. Step 2: Convert to fraction form
    2,662.29/3,986.44 = 1,878.04/x
  3. Step 3: Cross multiply
    2,662.29x = 3,986.44 × 1,878.04
  4. Step 4: Simplify right side
    2,662.29x = 7,486,693.78
  5. Step 5: Solve for x
    x = 7,486,693.78/2,662.29
  6. Step 6: Final answer
    x = 2,812.13

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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.