Home / 2,869.85-3,960.16-1,610.73

Finding the Fourth Proportional to 2,869.85, 3,960.16 and 1,610.73

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Solution

The fourth proportional to 2,869.85, 3,960.16 and 1,610.73 is: 2,222.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.85 : 3,960.16 = 1,610.73 : x
  2. Step 2: Convert to fraction form
    2,869.85/3,960.16 = 1,610.73/x
  3. Step 3: Cross multiply
    2,869.85x = 3,960.16 × 1,610.73
  4. Step 4: Simplify right side
    2,869.85x = 6,378,748.52
  5. Step 5: Solve for x
    x = 6,378,748.52/2,869.85
  6. Step 6: Final answer
    x = 2,222.68

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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.