Home / 3,629.74-5,443.80-1,438.96

Finding the Fourth Proportional to 3,629.74, 5,443.80 and 1,438.96

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Solution

The fourth proportional to 3,629.74, 5,443.80 and 1,438.96 is: 2,158.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.74 : 5,443.80 = 1,438.96 : x
  2. Step 2: Convert to fraction form
    3,629.74/5,443.80 = 1,438.96/x
  3. Step 3: Cross multiply
    3,629.74x = 5,443.80 × 1,438.96
  4. Step 4: Simplify right side
    3,629.74x = 7,833,410.45
  5. Step 5: Solve for x
    x = 7,833,410.45/3,629.74
  6. Step 6: Final answer
    x = 2,158.12

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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.