Home / 6,456.40-9,684.60-3,175.90

Finding the Fourth Proportional to 6,456.40, 9,684.60 and 3,175.90

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Solution

The fourth proportional to 6,456.40, 9,684.60 and 3,175.90 is: 4,763.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,456.40 : 9,684.60 = 3,175.90 : x
  2. Step 2: Convert to fraction form
    6,456.40/9,684.60 = 3,175.90/x
  3. Step 3: Cross multiply
    6,456.40x = 9,684.60 × 3,175.90
  4. Step 4: Simplify right side
    6,456.40x = 30,757,321.14
  5. Step 5: Solve for x
    x = 30,757,321.14/6,456.40
  6. Step 6: Final answer
    x = 4,763.85

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1.5x scale

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.