Home / 3,639.46-5,458.90-1,299.36

Finding the Fourth Proportional to 3,639.46, 5,458.90 and 1,299.36

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Solution

The fourth proportional to 3,639.46, 5,458.90 and 1,299.36 is: 1,948.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.46 : 5,458.90 = 1,299.36 : x
  2. Step 2: Convert to fraction form
    3,639.46/5,458.90 = 1,299.36/x
  3. Step 3: Cross multiply
    3,639.46x = 5,458.90 × 1,299.36
  4. Step 4: Simplify right side
    3,639.46x = 7,093,076.30
  5. Step 5: Solve for x
    x = 7,093,076.30/3,639.46
  6. Step 6: Final answer
    x = 1,948.94

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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.