Home / 6,121.40-9,180.30-2,422.40

Finding the Fourth Proportional to 6,121.40, 9,180.30 and 2,422.40

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Solution

The fourth proportional to 6,121.40, 9,180.30 and 2,422.40 is: 3,632.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.40 : 9,180.30 = 2,422.40 : x
  2. Step 2: Convert to fraction form
    6,121.40/9,180.30 = 2,422.40/x
  3. Step 3: Cross multiply
    6,121.40x = 9,180.30 × 2,422.40
  4. Step 4: Simplify right side
    6,121.40x = 22,238,358.72
  5. Step 5: Solve for x
    x = 22,238,358.72/6,121.40
  6. Step 6: Final answer
    x = 3,632.89

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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.