Home / 3,848.20-5,309.82-2,276.20

Finding the Fourth Proportional to 3,848.20, 5,309.82 and 2,276.20

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Solution

The fourth proportional to 3,848.20, 5,309.82 and 2,276.20 is: 3,140.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.20 : 5,309.82 = 2,276.20 : x
  2. Step 2: Convert to fraction form
    3,848.20/5,309.82 = 2,276.20/x
  3. Step 3: Cross multiply
    3,848.20x = 5,309.82 × 2,276.20
  4. Step 4: Simplify right side
    3,848.20x = 12,086,212.28
  5. Step 5: Solve for x
    x = 12,086,212.28/3,848.20
  6. Step 6: Final answer
    x = 3,140.74

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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.