Home / 3,984.65-5,979.83-2,670.91

Finding the Fourth Proportional to 3,984.65, 5,979.83 and 2,670.91

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Solution

The fourth proportional to 3,984.65, 5,979.83 and 2,670.91 is: 4,008.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.65 : 5,979.83 = 2,670.91 : x
  2. Step 2: Convert to fraction form
    3,984.65/5,979.83 = 2,670.91/x
  3. Step 3: Cross multiply
    3,984.65x = 5,979.83 × 2,670.91
  4. Step 4: Simplify right side
    3,984.65x = 15,971,587.75
  5. Step 5: Solve for x
    x = 15,971,587.75/3,984.65
  6. Step 6: Final answer
    x = 4,008.28

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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.