Home / 3,979.03-5,490.45-2,300.11

Finding the Fourth Proportional to 3,979.03, 5,490.45 and 2,300.11

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Solution

The fourth proportional to 3,979.03, 5,490.45 and 2,300.11 is: 3,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.03 : 5,490.45 = 2,300.11 : x
  2. Step 2: Convert to fraction form
    3,979.03/5,490.45 = 2,300.11/x
  3. Step 3: Cross multiply
    3,979.03x = 5,490.45 × 2,300.11
  4. Step 4: Simplify right side
    3,979.03x = 12,628,656.11
  5. Step 5: Solve for x
    x = 12,628,656.11/3,979.03
  6. Step 6: Final answer
    x = 3,173.80

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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.