Home / 3,836.13-5,288.92-2,839.69

Finding the Fourth Proportional to 3,836.13, 5,288.92 and 2,839.69

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Solution

The fourth proportional to 3,836.13, 5,288.92 and 2,839.69 is: 3,915.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,836.13 : 5,288.92 = 2,839.69 : x
  2. Step 2: Convert to fraction form
    3,836.13/5,288.92 = 2,839.69/x
  3. Step 3: Cross multiply
    3,836.13x = 5,288.92 × 2,839.69
  4. Step 4: Simplify right side
    3,836.13x = 15,018,893.23
  5. Step 5: Solve for x
    x = 15,018,893.23/3,836.13
  6. Step 6: Final answer
    x = 3,915.12

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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.