Home / 3,986.03-5,979.96-1,213.10

Finding the Fourth Proportional to 3,986.03, 5,979.96 and 1,213.10

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Solution

The fourth proportional to 3,986.03, 5,979.96 and 1,213.10 is: 1,819.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.03 : 5,979.96 = 1,213.10 : x
  2. Step 2: Convert to fraction form
    3,986.03/5,979.96 = 1,213.10/x
  3. Step 3: Cross multiply
    3,986.03x = 5,979.96 × 1,213.10
  4. Step 4: Simplify right side
    3,986.03x = 7,254,253.51
  5. Step 5: Solve for x
    x = 7,254,253.51/3,986.03
  6. Step 6: Final answer
    x = 1,819.92

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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.