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Finding the Fourth Proportional to 7,555.56, 11,329.44 and 3,392

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Solution

The fourth proportional to 7,555.56, 11,329.44 and 3,392 is: 5,086.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,555.56 : 11,329.44 = 3,392 : x
  2. Step 2: Convert to fraction form
    7,555.56/11,329.44 = 3,392/x
  3. Step 3: Cross multiply
    7,555.56x = 11,329.44 × 3,392
  4. Step 4: Simplify right side
    7,555.56x = 38,429,460.48
  5. Step 5: Solve for x
    x = 38,429,460.48/7,555.56
  6. Step 6: Final answer
    x = 5,086.25

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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.