Home / 7,618.16-11,427.49-2,620.49

Finding the Fourth Proportional to 7,618.16, 11,427.49 and 2,620.49

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Solution

The fourth proportional to 7,618.16, 11,427.49 and 2,620.49 is: 3,930.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.16 : 11,427.49 = 2,620.49 : x
  2. Step 2: Convert to fraction form
    7,618.16/11,427.49 = 2,620.49/x
  3. Step 3: Cross multiply
    7,618.16x = 11,427.49 × 2,620.49
  4. Step 4: Simplify right side
    7,618.16x = 29,945,569.41
  5. Step 5: Solve for x
    x = 29,945,569.41/7,618.16
  6. Step 6: Final answer
    x = 3,930.82

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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.