Home / 2,379.09-3,280.00-1,952.16

Finding the Fourth Proportional to 2,379.09, 3,280.00 and 1,952.16

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Solution

The fourth proportional to 2,379.09, 3,280.00 and 1,952.16 is: 2,691.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.09 : 3,280.00 = 1,952.16 : x
  2. Step 2: Convert to fraction form
    2,379.09/3,280.00 = 1,952.16/x
  3. Step 3: Cross multiply
    2,379.09x = 3,280.00 × 1,952.16
  4. Step 4: Simplify right side
    2,379.09x = 6,403,074.94
  5. Step 5: Solve for x
    x = 6,403,074.94/2,379.09
  6. Step 6: Final answer
    x = 2,691.39

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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.