Home / 3,821.18-5,273.60-2,142.59

Finding the Fourth Proportional to 3,821.18, 5,273.60 and 2,142.59

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Solution

The fourth proportional to 3,821.18, 5,273.60 and 2,142.59 is: 2,956.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.18 : 5,273.60 = 2,142.59 : x
  2. Step 2: Convert to fraction form
    3,821.18/5,273.60 = 2,142.59/x
  3. Step 3: Cross multiply
    3,821.18x = 5,273.60 × 2,142.59
  4. Step 4: Simplify right side
    3,821.18x = 11,299,125.54
  5. Step 5: Solve for x
    x = 11,299,125.54/3,821.18
  6. Step 6: Final answer
    x = 2,956.98

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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.