Home / 6,429.10-9,643.25-2,049.70

Finding the Fourth Proportional to 6,429.10, 9,643.25 and 2,049.70

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Solution

The fourth proportional to 6,429.10, 9,643.25 and 2,049.70 is: 3,074.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.10 : 9,643.25 = 2,049.70 : x
  2. Step 2: Convert to fraction form
    6,429.10/9,643.25 = 2,049.70/x
  3. Step 3: Cross multiply
    6,429.10x = 9,643.25 × 2,049.70
  4. Step 4: Simplify right side
    6,429.10x = 19,765,759.28
  5. Step 5: Solve for x
    x = 19,765,759.28/6,429.10
  6. Step 6: Final answer
    x = 3,074.42

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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.