Home / 2,620.17-3,929.65-1,234.46

Finding the Fourth Proportional to 2,620.17, 3,929.65 and 1,234.46

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Solution

The fourth proportional to 2,620.17, 3,929.65 and 1,234.46 is: 1,851.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.17 : 3,929.65 = 1,234.46 : x
  2. Step 2: Convert to fraction form
    2,620.17/3,929.65 = 1,234.46/x
  3. Step 3: Cross multiply
    2,620.17x = 3,929.65 × 1,234.46
  4. Step 4: Simplify right side
    2,620.17x = 4,851,002.48
  5. Step 5: Solve for x
    x = 4,851,002.48/2,620.17
  6. Step 6: Final answer
    x = 1,851.41

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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.