Home / 5,104.82-7,656.41-1,986.26

Finding the Fourth Proportional to 5,104.82, 7,656.41 and 1,986.26

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Solution

The fourth proportional to 5,104.82, 7,656.41 and 1,986.26 is: 2,979.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,104.82 : 7,656.41 = 1,986.26 : x
  2. Step 2: Convert to fraction form
    5,104.82/7,656.41 = 1,986.26/x
  3. Step 3: Cross multiply
    5,104.82x = 7,656.41 × 1,986.26
  4. Step 4: Simplify right side
    5,104.82x = 15,207,572.71
  5. Step 5: Solve for x
    x = 15,207,572.71/5,104.82
  6. Step 6: Final answer
    x = 2,979.06

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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.