Home / 3,406.12-5,107.74-1,065.50

Finding the Fourth Proportional to 3,406.12, 5,107.74 and 1,065.50

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Solution

The fourth proportional to 3,406.12, 5,107.74 and 1,065.50 is: 1,597.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406.12 : 5,107.74 = 1,065.50 : x
  2. Step 2: Convert to fraction form
    3,406.12/5,107.74 = 1,065.50/x
  3. Step 3: Cross multiply
    3,406.12x = 5,107.74 × 1,065.50
  4. Step 4: Simplify right side
    3,406.12x = 5,442,296.97
  5. Step 5: Solve for x
    x = 5,442,296.97/3,406.12
  6. Step 6: Final answer
    x = 1,597.80

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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.