Home / 3,120.32-4,304.80-2,001

Finding the Fourth Proportional to 3,120.32, 4,304.80 and 2,001

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Solution

The fourth proportional to 3,120.32, 4,304.80 and 2,001 is: 2,760.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.32 : 4,304.80 = 2,001 : x
  2. Step 2: Convert to fraction form
    3,120.32/4,304.80 = 2,001/x
  3. Step 3: Cross multiply
    3,120.32x = 4,304.80 × 2,001
  4. Step 4: Simplify right side
    3,120.32x = 8,613,904.80
  5. Step 5: Solve for x
    x = 8,613,904.80/3,120.32
  6. Step 6: Final answer
    x = 2,760.58

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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.