Home / 3,679.33-5,079.36-2,838.15

Finding the Fourth Proportional to 3,679.33, 5,079.36 and 2,838.15

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Solution

The fourth proportional to 3,679.33, 5,079.36 and 2,838.15 is: 3,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.33 : 5,079.36 = 2,838.15 : x
  2. Step 2: Convert to fraction form
    3,679.33/5,079.36 = 2,838.15/x
  3. Step 3: Cross multiply
    3,679.33x = 5,079.36 × 2,838.15
  4. Step 4: Simplify right side
    3,679.33x = 14,415,982.78
  5. Step 5: Solve for x
    x = 14,415,982.78/3,679.33
  6. Step 6: Final answer
    x = 3,918.10

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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.