Home / 7,980.22-11,969.30-2,434.15

Finding the Fourth Proportional to 7,980.22, 11,969.30 and 2,434.15

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Solution

The fourth proportional to 7,980.22, 11,969.30 and 2,434.15 is: 3,650.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.22 : 11,969.30 = 2,434.15 : x
  2. Step 2: Convert to fraction form
    7,980.22/11,969.30 = 2,434.15/x
  3. Step 3: Cross multiply
    7,980.22x = 11,969.30 × 2,434.15
  4. Step 4: Simplify right side
    7,980.22x = 29,135,092.64
  5. Step 5: Solve for x
    x = 29,135,092.64/7,980.22
  6. Step 6: Final answer
    x = 3,650.91

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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.