Home / 3,412.73-5,115.35-1,332.11

Finding the Fourth Proportional to 3,412.73, 5,115.35 and 1,332.11

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Solution

The fourth proportional to 3,412.73, 5,115.35 and 1,332.11 is: 1,996.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.73 : 5,115.35 = 1,332.11 : x
  2. Step 2: Convert to fraction form
    3,412.73/5,115.35 = 1,332.11/x
  3. Step 3: Cross multiply
    3,412.73x = 5,115.35 × 1,332.11
  4. Step 4: Simplify right side
    3,412.73x = 6,814,225.01
  5. Step 5: Solve for x
    x = 6,814,225.01/3,412.73
  6. Step 6: Final answer
    x = 1,996.71

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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.