Home / 3,608.48-4,979.77-2,116.44

Finding the Fourth Proportional to 3,608.48, 4,979.77 and 2,116.44

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Solution

The fourth proportional to 3,608.48, 4,979.77 and 2,116.44 is: 2,920.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.48 : 4,979.77 = 2,116.44 : x
  2. Step 2: Convert to fraction form
    3,608.48/4,979.77 = 2,116.44/x
  3. Step 3: Cross multiply
    3,608.48x = 4,979.77 × 2,116.44
  4. Step 4: Simplify right side
    3,608.48x = 10,539,379.13
  5. Step 5: Solve for x
    x = 10,539,379.13/3,608.48
  6. Step 6: Final answer
    x = 2,920.72

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1.5x scale

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.