Home / 3,818.18-5,269.46-2,139.59

Finding the Fourth Proportional to 3,818.18, 5,269.46 and 2,139.59

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Solution

The fourth proportional to 3,818.18, 5,269.46 and 2,139.59 is: 2,952.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.18 : 5,269.46 = 2,139.59 : x
  2. Step 2: Convert to fraction form
    3,818.18/5,269.46 = 2,139.59/x
  3. Step 3: Cross multiply
    3,818.18x = 5,269.46 × 2,139.59
  4. Step 4: Simplify right side
    3,818.18x = 11,274,446.88
  5. Step 5: Solve for x
    x = 11,274,446.88/3,818.18
  6. Step 6: Final answer
    x = 2,952.84

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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.