Home / 2,786.31-3,844.28-1,591.25

Finding the Fourth Proportional to 2,786.31, 3,844.28 and 1,591.25

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Solution

The fourth proportional to 2,786.31, 3,844.28 and 1,591.25 is: 2,195.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.31 : 3,844.28 = 1,591.25 : x
  2. Step 2: Convert to fraction form
    2,786.31/3,844.28 = 1,591.25/x
  3. Step 3: Cross multiply
    2,786.31x = 3,844.28 × 1,591.25
  4. Step 4: Simplify right side
    2,786.31x = 6,117,202.59
  5. Step 5: Solve for x
    x = 6,117,202.59/2,786.31
  6. Step 6: Final answer
    x = 2,195.45

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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.