Home / 3,145.83-4,344.40-2,591.79

Finding the Fourth Proportional to 3,145.83, 4,344.40 and 2,591.79

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Solution

The fourth proportional to 3,145.83, 4,344.40 and 2,591.79 is: 3,579.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.83 : 4,344.40 = 2,591.79 : x
  2. Step 2: Convert to fraction form
    3,145.83/4,344.40 = 2,591.79/x
  3. Step 3: Cross multiply
    3,145.83x = 4,344.40 × 2,591.79
  4. Step 4: Simplify right side
    3,145.83x = 11,259,772.48
  5. Step 5: Solve for x
    x = 11,259,772.48/3,145.83
  6. Step 6: Final answer
    x = 3,579.27

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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.