Home / 3,412.29-5,115.64-1,465.86

Finding the Fourth Proportional to 3,412.29, 5,115.64 and 1,465.86

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Solution

The fourth proportional to 3,412.29, 5,115.64 and 1,465.86 is: 2,197.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.29 : 5,115.64 = 1,465.86 : x
  2. Step 2: Convert to fraction form
    3,412.29/5,115.64 = 1,465.86/x
  3. Step 3: Cross multiply
    3,412.29x = 5,115.64 × 1,465.86
  4. Step 4: Simplify right side
    3,412.29x = 7,498,812.05
  5. Step 5: Solve for x
    x = 7,498,812.05/3,412.29
  6. Step 6: Final answer
    x = 2,197.59

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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.