Home / 7,610.90-11,415.35-3,229.40

Finding the Fourth Proportional to 7,610.90, 11,415.35 and 3,229.40

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Solution

The fourth proportional to 7,610.90, 11,415.35 and 3,229.40 is: 4,843.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,610.90 : 11,415.35 = 3,229.40 : x
  2. Step 2: Convert to fraction form
    7,610.90/11,415.35 = 3,229.40/x
  3. Step 3: Cross multiply
    7,610.90x = 11,415.35 × 3,229.40
  4. Step 4: Simplify right side
    7,610.90x = 36,864,767.90
  5. Step 5: Solve for x
    x = 36,864,767.90/7,610.90
  6. Step 6: Final answer
    x = 4,843.68

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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.