Home / 6,141.40-9,217.90-3,221.80

Finding the Fourth Proportional to 6,141.40, 9,217.90 and 3,221.80

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Solution

The fourth proportional to 6,141.40, 9,217.90 and 3,221.80 is: 4,835.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,141.40 : 9,217.90 = 3,221.80 : x
  2. Step 2: Convert to fraction form
    6,141.40/9,217.90 = 3,221.80/x
  3. Step 3: Cross multiply
    6,141.40x = 9,217.90 × 3,221.80
  4. Step 4: Simplify right side
    6,141.40x = 29,698,230.22
  5. Step 5: Solve for x
    x = 29,698,230.22/6,141.40
  6. Step 6: Final answer
    x = 4,835.74

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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.