Home / 7,719.22-11,577.91-2,019.81

Finding the Fourth Proportional to 7,719.22, 11,577.91 and 2,019.81

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Solution

The fourth proportional to 7,719.22, 11,577.91 and 2,019.81 is: 3,029.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.22 : 11,577.91 = 2,019.81 : x
  2. Step 2: Convert to fraction form
    7,719.22/11,577.91 = 2,019.81/x
  3. Step 3: Cross multiply
    7,719.22x = 11,577.91 × 2,019.81
  4. Step 4: Simplify right side
    7,719.22x = 23,385,178.40
  5. Step 5: Solve for x
    x = 23,385,178.40/7,719.22
  6. Step 6: Final answer
    x = 3,029.47

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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.