Home / 3,857.70-5,323.61-2,089.31

Finding the Fourth Proportional to 3,857.70, 5,323.61 and 2,089.31

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Solution

The fourth proportional to 3,857.70, 5,323.61 and 2,089.31 is: 2,883.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.70 : 5,323.61 = 2,089.31 : x
  2. Step 2: Convert to fraction form
    3,857.70/5,323.61 = 2,089.31/x
  3. Step 3: Cross multiply
    3,857.70x = 5,323.61 × 2,089.31
  4. Step 4: Simplify right side
    3,857.70x = 11,122,634.54
  5. Step 5: Solve for x
    x = 11,122,634.54/3,857.70
  6. Step 6: Final answer
    x = 2,883.23

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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.