Home / 3,855.18-5,320.42-2,176.73

Finding the Fourth Proportional to 3,855.18, 5,320.42 and 2,176.73

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Solution

The fourth proportional to 3,855.18, 5,320.42 and 2,176.73 is: 3,004.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.18 : 5,320.42 = 2,176.73 : x
  2. Step 2: Convert to fraction form
    3,855.18/5,320.42 = 2,176.73/x
  3. Step 3: Cross multiply
    3,855.18x = 5,320.42 × 2,176.73
  4. Step 4: Simplify right side
    3,855.18x = 11,581,117.83
  5. Step 5: Solve for x
    x = 11,581,117.83/3,855.18
  6. Step 6: Final answer
    x = 3,004.04

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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.