Home / 3,764.21-5,639.02-1,817.78

Finding the Fourth Proportional to 3,764.21, 5,639.02 and 1,817.78

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Solution

The fourth proportional to 3,764.21, 5,639.02 and 1,817.78 is: 2,723.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,764.21 : 5,639.02 = 1,817.78 : x
  2. Step 2: Convert to fraction form
    3,764.21/5,639.02 = 1,817.78/x
  3. Step 3: Cross multiply
    3,764.21x = 5,639.02 × 1,817.78
  4. Step 4: Simplify right side
    3,764.21x = 10,250,465.04
  5. Step 5: Solve for x
    x = 10,250,465.04/3,764.21
  6. Step 6: Final answer
    x = 2,723.14

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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.