Home / 3,821.57-5,273.67-2,142.84

Finding the Fourth Proportional to 3,821.57, 5,273.67 and 2,142.84

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Solution

The fourth proportional to 3,821.57, 5,273.67 and 2,142.84 is: 2,957.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.57 : 5,273.67 = 2,142.84 : x
  2. Step 2: Convert to fraction form
    3,821.57/5,273.67 = 2,142.84/x
  3. Step 3: Cross multiply
    3,821.57x = 5,273.67 × 2,142.84
  4. Step 4: Simplify right side
    3,821.57x = 11,300,631.02
  5. Step 5: Solve for x
    x = 11,300,631.02/3,821.57
  6. Step 6: Final answer
    x = 2,957.07

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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.