Home / 2,639.82-3,961.08-1,762.92

Finding the Fourth Proportional to 2,639.82, 3,961.08 and 1,762.92

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Solution

The fourth proportional to 2,639.82, 3,961.08 and 1,762.92 is: 2,645.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.82 : 3,961.08 = 1,762.92 : x
  2. Step 2: Convert to fraction form
    2,639.82/3,961.08 = 1,762.92/x
  3. Step 3: Cross multiply
    2,639.82x = 3,961.08 × 1,762.92
  4. Step 4: Simplify right side
    2,639.82x = 6,983,067.15
  5. Step 5: Solve for x
    x = 6,983,067.15/2,639.82
  6. Step 6: Final answer
    x = 2,645.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.