Home / 2,620.30-3,929.20-1,232.47

Finding the Fourth Proportional to 2,620.30, 3,929.20 and 1,232.47

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Solution

The fourth proportional to 2,620.30, 3,929.20 and 1,232.47 is: 1,848.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.30 : 3,929.20 = 1,232.47 : x
  2. Step 2: Convert to fraction form
    2,620.30/3,929.20 = 1,232.47/x
  3. Step 3: Cross multiply
    2,620.30x = 3,929.20 × 1,232.47
  4. Step 4: Simplify right side
    2,620.30x = 4,842,608.22
  5. Step 5: Solve for x
    x = 4,842,608.22/2,620.30
  6. Step 6: Final answer
    x = 1,848.11

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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.