Home / 2,873.45-3,965.36-1,631.45

Finding the Fourth Proportional to 2,873.45, 3,965.36 and 1,631.45

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Solution

The fourth proportional to 2,873.45, 3,965.36 and 1,631.45 is: 2,251.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.45 : 3,965.36 = 1,631.45 : x
  2. Step 2: Convert to fraction form
    2,873.45/3,965.36 = 1,631.45/x
  3. Step 3: Cross multiply
    2,873.45x = 3,965.36 × 1,631.45
  4. Step 4: Simplify right side
    2,873.45x = 6,469,258.59
  5. Step 5: Solve for x
    x = 6,469,258.59/2,873.45
  6. Step 6: Final answer
    x = 2,251.39

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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.