Home / 7,788.64-11,682.96-2,316.64

Finding the Fourth Proportional to 7,788.64, 11,682.96 and 2,316.64

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Solution

The fourth proportional to 7,788.64, 11,682.96 and 2,316.64 is: 3,474.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.64 : 11,682.96 = 2,316.64 : x
  2. Step 2: Convert to fraction form
    7,788.64/11,682.96 = 2,316.64/x
  3. Step 3: Cross multiply
    7,788.64x = 11,682.96 × 2,316.64
  4. Step 4: Simplify right side
    7,788.64x = 27,065,212.45
  5. Step 5: Solve for x
    x = 27,065,212.45/7,788.64
  6. Step 6: Final answer
    x = 3,474.96

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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.