Home / 2,785.43-3,842.75-1,722.44

Finding the Fourth Proportional to 2,785.43, 3,842.75 and 1,722.44

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Solution

The fourth proportional to 2,785.43, 3,842.75 and 1,722.44 is: 2,376.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.43 : 3,842.75 = 1,722.44 : x
  2. Step 2: Convert to fraction form
    2,785.43/3,842.75 = 1,722.44/x
  3. Step 3: Cross multiply
    2,785.43x = 3,842.75 × 1,722.44
  4. Step 4: Simplify right side
    2,785.43x = 6,618,878.48
  5. Step 5: Solve for x
    x = 6,618,878.48/2,785.43
  6. Step 6: Final answer
    x = 2,376.25

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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.