Home / 3,830.68-5,286.36-2,259.55

Finding the Fourth Proportional to 3,830.68, 5,286.36 and 2,259.55

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Solution

The fourth proportional to 3,830.68, 5,286.36 and 2,259.55 is: 3,118.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830.68 : 5,286.36 = 2,259.55 : x
  2. Step 2: Convert to fraction form
    3,830.68/5,286.36 = 2,259.55/x
  3. Step 3: Cross multiply
    3,830.68x = 5,286.36 × 2,259.55
  4. Step 4: Simplify right side
    3,830.68x = 11,944,794.74
  5. Step 5: Solve for x
    x = 11,944,794.74/3,830.68
  6. Step 6: Final answer
    x = 3,118.19

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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.