Home / 3,571.18-5,355.73-1,379.42

Finding the Fourth Proportional to 3,571.18, 5,355.73 and 1,379.42

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Solution

The fourth proportional to 3,571.18, 5,355.73 and 1,379.42 is: 2,068.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.18 : 5,355.73 = 1,379.42 : x
  2. Step 2: Convert to fraction form
    3,571.18/5,355.73 = 1,379.42/x
  3. Step 3: Cross multiply
    3,571.18x = 5,355.73 × 1,379.42
  4. Step 4: Simplify right side
    3,571.18x = 7,387,801.08
  5. Step 5: Solve for x
    x = 7,387,801.08/3,571.18
  6. Step 6: Final answer
    x = 2,068.73

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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.