Home / 3,417.86-5,135.28-2,185.82

Finding the Fourth Proportional to 3,417.86, 5,135.28 and 2,185.82

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Solution

The fourth proportional to 3,417.86, 5,135.28 and 2,185.82 is: 3,284.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.86 : 5,135.28 = 2,185.82 : x
  2. Step 2: Convert to fraction form
    3,417.86/5,135.28 = 2,185.82/x
  3. Step 3: Cross multiply
    3,417.86x = 5,135.28 × 2,185.82
  4. Step 4: Simplify right side
    3,417.86x = 11,224,797.73
  5. Step 5: Solve for x
    x = 11,224,797.73/3,417.86
  6. Step 6: Final answer
    x = 3,284.16

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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.