Home / 2,785.96-3,842.36-1,791.32

Finding the Fourth Proportional to 2,785.96, 3,842.36 and 1,791.32

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Solution

The fourth proportional to 2,785.96, 3,842.36 and 1,791.32 is: 2,470.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.96 : 3,842.36 = 1,791.32 : x
  2. Step 2: Convert to fraction form
    2,785.96/3,842.36 = 1,791.32/x
  3. Step 3: Cross multiply
    2,785.96x = 3,842.36 × 1,791.32
  4. Step 4: Simplify right side
    2,785.96x = 6,882,896.32
  5. Step 5: Solve for x
    x = 6,882,896.32/2,785.96
  6. Step 6: Final answer
    x = 2,470.57

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1.5x scale

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.