Home / 3,871.66-5,343.37-2,299.76

Finding the Fourth Proportional to 3,871.66, 5,343.37 and 2,299.76

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Solution

The fourth proportional to 3,871.66, 5,343.37 and 2,299.76 is: 3,173.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.66 : 5,343.37 = 2,299.76 : x
  2. Step 2: Convert to fraction form
    3,871.66/5,343.37 = 2,299.76/x
  3. Step 3: Cross multiply
    3,871.66x = 5,343.37 × 2,299.76
  4. Step 4: Simplify right side
    3,871.66x = 12,288,468.59
  5. Step 5: Solve for x
    x = 12,288,468.59/3,871.66
  6. Step 6: Final answer
    x = 3,173.95

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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.