Home / 7,671.84-11,529.64-3,778.96

Finding the Fourth Proportional to 7,671.84, 11,529.64 and 3,778.96

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Solution

The fourth proportional to 7,671.84, 11,529.64 and 3,778.96 is: 5,679.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,671.84 : 11,529.64 = 3,778.96 : x
  2. Step 2: Convert to fraction form
    7,671.84/11,529.64 = 3,778.96/x
  3. Step 3: Cross multiply
    7,671.84x = 11,529.64 × 3,778.96
  4. Step 4: Simplify right side
    7,671.84x = 43,570,048.37
  5. Step 5: Solve for x
    x = 43,570,048.37/7,671.84
  6. Step 6: Final answer
    x = 5,679.22

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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.