Home / 3,855.17-5,320.73-2,177.25

Finding the Fourth Proportional to 3,855.17, 5,320.73 and 2,177.25

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Solution

The fourth proportional to 3,855.17, 5,320.73 and 2,177.25 is: 3,004.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.17 : 5,320.73 = 2,177.25 : x
  2. Step 2: Convert to fraction form
    3,855.17/5,320.73 = 2,177.25/x
  3. Step 3: Cross multiply
    3,855.17x = 5,320.73 × 2,177.25
  4. Step 4: Simplify right side
    3,855.17x = 11,584,559.39
  5. Step 5: Solve for x
    x = 11,584,559.39/3,855.17
  6. Step 6: Final answer
    x = 3,004.94

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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.