Home / 7,676.80-11,518.20-2,997.22

Finding the Fourth Proportional to 7,676.80, 11,518.20 and 2,997.22

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Solution

The fourth proportional to 7,676.80, 11,518.20 and 2,997.22 is: 4,497.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,676.80 : 11,518.20 = 2,997.22 : x
  2. Step 2: Convert to fraction form
    7,676.80/11,518.20 = 2,997.22/x
  3. Step 3: Cross multiply
    7,676.80x = 11,518.20 × 2,997.22
  4. Step 4: Simplify right side
    7,676.80x = 34,522,579.40
  5. Step 5: Solve for x
    x = 34,522,579.40/7,676.80
  6. Step 6: Final answer
    x = 4,497.00

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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.