Home / 3,150.36-4,714.80-1,979.88

Finding the Fourth Proportional to 3,150.36, 4,714.80 and 1,979.88

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Solution

The fourth proportional to 3,150.36, 4,714.80 and 1,979.88 is: 2,963.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.36 : 4,714.80 = 1,979.88 : x
  2. Step 2: Convert to fraction form
    3,150.36/4,714.80 = 1,979.88/x
  3. Step 3: Cross multiply
    3,150.36x = 4,714.80 × 1,979.88
  4. Step 4: Simplify right side
    3,150.36x = 9,334,738.22
  5. Step 5: Solve for x
    x = 9,334,738.22/3,150.36
  6. Step 6: Final answer
    x = 2,963.07

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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.