Home / 3,405.20-5,107.91-1,065.24

Finding the Fourth Proportional to 3,405.20, 5,107.91 and 1,065.24

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Solution

The fourth proportional to 3,405.20, 5,107.91 and 1,065.24 is: 1,597.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.20 : 5,107.91 = 1,065.24 : x
  2. Step 2: Convert to fraction form
    3,405.20/5,107.91 = 1,065.24/x
  3. Step 3: Cross multiply
    3,405.20x = 5,107.91 × 1,065.24
  4. Step 4: Simplify right side
    3,405.20x = 5,441,144.72
  5. Step 5: Solve for x
    x = 5,441,144.72/3,405.20
  6. Step 6: Final answer
    x = 1,597.90

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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.