Home / 3,759.77-5,185.33-2,817.77

Finding the Fourth Proportional to 3,759.77, 5,185.33 and 2,817.77

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Solution

The fourth proportional to 3,759.77, 5,185.33 and 2,817.77 is: 3,886.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.77 : 5,185.33 = 2,817.77 : x
  2. Step 2: Convert to fraction form
    3,759.77/5,185.33 = 2,817.77/x
  3. Step 3: Cross multiply
    3,759.77x = 5,185.33 × 2,817.77
  4. Step 4: Simplify right side
    3,759.77x = 14,611,067.31
  5. Step 5: Solve for x
    x = 14,611,067.31/3,759.77
  6. Step 6: Final answer
    x = 3,886.16

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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.