Home / 2,620.76-3,927.49-2,176.07

Finding the Fourth Proportional to 2,620.76, 3,927.49 and 2,176.07

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Solution

The fourth proportional to 2,620.76, 3,927.49 and 2,176.07 is: 3,261.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.76 : 3,927.49 = 2,176.07 : x
  2. Step 2: Convert to fraction form
    2,620.76/3,927.49 = 2,176.07/x
  3. Step 3: Cross multiply
    2,620.76x = 3,927.49 × 2,176.07
  4. Step 4: Simplify right side
    2,620.76x = 8,546,468.09
  5. Step 5: Solve for x
    x = 8,546,468.09/2,620.76
  6. Step 6: Final answer
    x = 3,261.07

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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.