Home / 3,821.34-5,273.48-2,142.74

Finding the Fourth Proportional to 3,821.34, 5,273.48 and 2,142.74

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Solution

The fourth proportional to 3,821.34, 5,273.48 and 2,142.74 is: 2,957.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.34 : 5,273.48 = 2,142.74 : x
  2. Step 2: Convert to fraction form
    3,821.34/5,273.48 = 2,142.74/x
  3. Step 3: Cross multiply
    3,821.34x = 5,273.48 × 2,142.74
  4. Step 4: Simplify right side
    3,821.34x = 11,299,696.54
  5. Step 5: Solve for x
    x = 11,299,696.54/3,821.34
  6. Step 6: Final answer
    x = 2,957.00

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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.