Home / 2,379.67-3,283.94-1,385.53

Finding the Fourth Proportional to 2,379.67, 3,283.94 and 1,385.53

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Solution

The fourth proportional to 2,379.67, 3,283.94 and 1,385.53 is: 1,912.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.67 : 3,283.94 = 1,385.53 : x
  2. Step 2: Convert to fraction form
    2,379.67/3,283.94 = 1,385.53/x
  3. Step 3: Cross multiply
    2,379.67x = 3,283.94 × 1,385.53
  4. Step 4: Simplify right side
    2,379.67x = 4,549,992.64
  5. Step 5: Solve for x
    x = 4,549,992.64/2,379.67
  6. Step 6: Final answer
    x = 1,912.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.