Home / 2,251.68-3,109.72-2,007.36

Finding the Fourth Proportional to 2,251.68, 3,109.72 and 2,007.36

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Solution

The fourth proportional to 2,251.68, 3,109.72 and 2,007.36 is: 2,772.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.68 : 3,109.72 = 2,007.36 : x
  2. Step 2: Convert to fraction form
    2,251.68/3,109.72 = 2,007.36/x
  3. Step 3: Cross multiply
    2,251.68x = 3,109.72 × 2,007.36
  4. Step 4: Simplify right side
    2,251.68x = 6,242,327.54
  5. Step 5: Solve for x
    x = 6,242,327.54/2,251.68
  6. Step 6: Final answer
    x = 2,772.30

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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.