Home / 7,788.22-11,678.01-2,591.26

Finding the Fourth Proportional to 7,788.22, 11,678.01 and 2,591.26

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Solution

The fourth proportional to 7,788.22, 11,678.01 and 2,591.26 is: 3,885.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.22 : 11,678.01 = 2,591.26 : x
  2. Step 2: Convert to fraction form
    7,788.22/11,678.01 = 2,591.26/x
  3. Step 3: Cross multiply
    7,788.22x = 11,678.01 × 2,591.26
  4. Step 4: Simplify right side
    7,788.22x = 30,260,760.19
  5. Step 5: Solve for x
    x = 30,260,760.19/7,788.22
  6. Step 6: Final answer
    x = 3,885.45

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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.