Home / 7,620.65-11,425.48-3,458.57

Finding the Fourth Proportional to 7,620.65, 11,425.48 and 3,458.57

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Solution

The fourth proportional to 7,620.65, 11,425.48 and 3,458.57 is: 5,185.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.65 : 11,425.48 = 3,458.57 : x
  2. Step 2: Convert to fraction form
    7,620.65/11,425.48 = 3,458.57/x
  3. Step 3: Cross multiply
    7,620.65x = 11,425.48 × 3,458.57
  4. Step 4: Simplify right side
    7,620.65x = 39,515,756.59
  5. Step 5: Solve for x
    x = 39,515,756.59/7,620.65
  6. Step 6: Final answer
    x = 5,185.36

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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.