Home / 5,639.12-8,458.82-1,941.54

Finding the Fourth Proportional to 5,639.12, 8,458.82 and 1,941.54

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Solution

The fourth proportional to 5,639.12, 8,458.82 and 1,941.54 is: 2,912.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.12 : 8,458.82 = 1,941.54 : x
  2. Step 2: Convert to fraction form
    5,639.12/8,458.82 = 1,941.54/x
  3. Step 3: Cross multiply
    5,639.12x = 8,458.82 × 1,941.54
  4. Step 4: Simplify right side
    5,639.12x = 16,423,127.68
  5. Step 5: Solve for x
    x = 16,423,127.68/5,639.12
  6. Step 6: Final answer
    x = 2,912.36

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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.