Home / 3,680.24-5,078.70-2,108.33

Finding the Fourth Proportional to 3,680.24, 5,078.70 and 2,108.33

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Solution

The fourth proportional to 3,680.24, 5,078.70 and 2,108.33 is: 2,909.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.24 : 5,078.70 = 2,108.33 : x
  2. Step 2: Convert to fraction form
    3,680.24/5,078.70 = 2,108.33/x
  3. Step 3: Cross multiply
    3,680.24x = 5,078.70 × 2,108.33
  4. Step 4: Simplify right side
    3,680.24x = 10,707,569.22
  5. Step 5: Solve for x
    x = 10,707,569.22/3,680.24
  6. Step 6: Final answer
    x = 2,909.48

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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.