Home / 3,821.51-5,273.84-2,142.93

Finding the Fourth Proportional to 3,821.51, 5,273.84 and 2,142.93

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Solution

The fourth proportional to 3,821.51, 5,273.84 and 2,142.93 is: 2,957.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.51 : 5,273.84 = 2,142.93 : x
  2. Step 2: Convert to fraction form
    3,821.51/5,273.84 = 2,142.93/x
  3. Step 3: Cross multiply
    3,821.51x = 5,273.84 × 2,142.93
  4. Step 4: Simplify right side
    3,821.51x = 11,301,469.95
  5. Step 5: Solve for x
    x = 11,301,469.95/3,821.51
  6. Step 6: Final answer
    x = 2,957.33

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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.