Home / 7,328.12-10,992.70-2,650.90

Finding the Fourth Proportional to 7,328.12, 10,992.70 and 2,650.90

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Solution

The fourth proportional to 7,328.12, 10,992.70 and 2,650.90 is: 3,976.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.12 : 10,992.70 = 2,650.90 : x
  2. Step 2: Convert to fraction form
    7,328.12/10,992.70 = 2,650.90/x
  3. Step 3: Cross multiply
    7,328.12x = 10,992.70 × 2,650.90
  4. Step 4: Simplify right side
    7,328.12x = 29,140,548.43
  5. Step 5: Solve for x
    x = 29,140,548.43/7,328.12
  6. Step 6: Final answer
    x = 3,976.54

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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.