Home / 3,818.80-5,729.28-1,479.52

Finding the Fourth Proportional to 3,818.80, 5,729.28 and 1,479.52

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Solution

The fourth proportional to 3,818.80, 5,729.28 and 1,479.52 is: 2,219.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.80 : 5,729.28 = 1,479.52 : x
  2. Step 2: Convert to fraction form
    3,818.80/5,729.28 = 1,479.52/x
  3. Step 3: Cross multiply
    3,818.80x = 5,729.28 × 1,479.52
  4. Step 4: Simplify right side
    3,818.80x = 8,476,584.35
  5. Step 5: Solve for x
    x = 8,476,584.35/3,818.80
  6. Step 6: Final answer
    x = 2,219.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.