Home / 3,115.67-4,665.81-2,416.52

Finding the Fourth Proportional to 3,115.67, 4,665.81 and 2,416.52

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Solution

The fourth proportional to 3,115.67, 4,665.81 and 2,416.52 is: 3,618.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.67 : 4,665.81 = 2,416.52 : x
  2. Step 2: Convert to fraction form
    3,115.67/4,665.81 = 2,416.52/x
  3. Step 3: Cross multiply
    3,115.67x = 4,665.81 × 2,416.52
  4. Step 4: Simplify right side
    3,115.67x = 11,275,017.66
  5. Step 5: Solve for x
    x = 11,275,017.66/3,115.67
  6. Step 6: Final answer
    x = 3,618.81

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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.