Home / 7,790.40-11,677.32-3,625.56

Finding the Fourth Proportional to 7,790.40, 11,677.32 and 3,625.56

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Solution

The fourth proportional to 7,790.40, 11,677.32 and 3,625.56 is: 5,434.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.40 : 11,677.32 = 3,625.56 : x
  2. Step 2: Convert to fraction form
    7,790.40/11,677.32 = 3,625.56/x
  3. Step 3: Cross multiply
    7,790.40x = 11,677.32 × 3,625.56
  4. Step 4: Simplify right side
    7,790.40x = 42,336,824.30
  5. Step 5: Solve for x
    x = 42,336,824.30/7,790.40
  6. Step 6: Final answer
    x = 5,434.49

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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.