Home / 2,079.36-3,120.96-2,031.84

Finding the Fourth Proportional to 2,079.36, 3,120.96 and 2,031.84

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Solution

The fourth proportional to 2,079.36, 3,120.96 and 2,031.84 is: 3,049.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.36 : 3,120.96 = 2,031.84 : x
  2. Step 2: Convert to fraction form
    2,079.36/3,120.96 = 2,031.84/x
  3. Step 3: Cross multiply
    2,079.36x = 3,120.96 × 2,031.84
  4. Step 4: Simplify right side
    2,079.36x = 6,341,291.37
  5. Step 5: Solve for x
    x = 6,341,291.37/2,079.36
  6. Step 6: Final answer
    x = 3,049.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.