Home / 2,853.36-3,939.38-2,676.88

Finding the Fourth Proportional to 2,853.36, 3,939.38 and 2,676.88

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Solution

The fourth proportional to 2,853.36, 3,939.38 and 2,676.88 is: 3,695.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.36 : 3,939.38 = 2,676.88 : x
  2. Step 2: Convert to fraction form
    2,853.36/3,939.38 = 2,676.88/x
  3. Step 3: Cross multiply
    2,853.36x = 3,939.38 × 2,676.88
  4. Step 4: Simplify right side
    2,853.36x = 10,545,247.53
  5. Step 5: Solve for x
    x = 10,545,247.53/2,853.36
  6. Step 6: Final answer
    x = 3,695.73

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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.