Home / 8,620.00-12,929.74-2,380.39

Finding the Fourth Proportional to 8,620.00, 12,929.74 and 2,380.39

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Solution

The fourth proportional to 8,620.00, 12,929.74 and 2,380.39 is: 3,570.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620.00 : 12,929.74 = 2,380.39 : x
  2. Step 2: Convert to fraction form
    8,620.00/12,929.74 = 2,380.39/x
  3. Step 3: Cross multiply
    8,620.00x = 12,929.74 × 2,380.39
  4. Step 4: Simplify right side
    8,620.00x = 30,777,842.94
  5. Step 5: Solve for x
    x = 30,777,842.94/8,620.00
  6. Step 6: Final answer
    x = 3,570.52

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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.