Home / 3,758.31-5,186.37-2,079.66

Finding the Fourth Proportional to 3,758.31, 5,186.37 and 2,079.66

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Solution

The fourth proportional to 3,758.31, 5,186.37 and 2,079.66 is: 2,869.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,758.31 : 5,186.37 = 2,079.66 : x
  2. Step 2: Convert to fraction form
    3,758.31/5,186.37 = 2,079.66/x
  3. Step 3: Cross multiply
    3,758.31x = 5,186.37 × 2,079.66
  4. Step 4: Simplify right side
    3,758.31x = 10,785,886.23
  5. Step 5: Solve for x
    x = 10,785,886.23/3,758.31
  6. Step 6: Final answer
    x = 2,869.88

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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.