Home / 7,618.66-11,428.22-2,620.98

Finding the Fourth Proportional to 7,618.66, 11,428.22 and 2,620.98

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Solution

The fourth proportional to 7,618.66, 11,428.22 and 2,620.98 is: 3,931.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.66 : 11,428.22 = 2,620.98 : x
  2. Step 2: Convert to fraction form
    7,618.66/11,428.22 = 2,620.98/x
  3. Step 3: Cross multiply
    7,618.66x = 11,428.22 × 2,620.98
  4. Step 4: Simplify right side
    7,618.66x = 29,953,142.61
  5. Step 5: Solve for x
    x = 29,953,142.61/7,618.66
  6. Step 6: Final answer
    x = 3,931.55

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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.