Home / 7,678.74-11,515.98-3,295.22

Finding the Fourth Proportional to 7,678.74, 11,515.98 and 3,295.22

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Solution

The fourth proportional to 7,678.74, 11,515.98 and 3,295.22 is: 4,941.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678.74 : 11,515.98 = 3,295.22 : x
  2. Step 2: Convert to fraction form
    7,678.74/11,515.98 = 3,295.22/x
  3. Step 3: Cross multiply
    7,678.74x = 11,515.98 × 3,295.22
  4. Step 4: Simplify right side
    7,678.74x = 37,947,716.41
  5. Step 5: Solve for x
    x = 37,947,716.41/7,678.74
  6. Step 6: Final answer
    x = 4,941.92

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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.