Home / 3,416.12-5,125-1,107.62

Finding the Fourth Proportional to 3,416.12, 5,125 and 1,107.62

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Solution

The fourth proportional to 3,416.12, 5,125 and 1,107.62 is: 1,661.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,416.12 : 5,125 = 1,107.62 : x
  2. Step 2: Convert to fraction form
    3,416.12/5,125 = 1,107.62/x
  3. Step 3: Cross multiply
    3,416.12x = 5,125 × 1,107.62
  4. Step 4: Simplify right side
    3,416.12x = 5,676,552.50
  5. Step 5: Solve for x
    x = 5,676,552.50/3,416.12
  6. Step 6: Final answer
    x = 1,661.70

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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.