Home / 2,679.08-4,026.78-2,621.66

Finding the Fourth Proportional to 2,679.08, 4,026.78 and 2,621.66

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Solution

The fourth proportional to 2,679.08, 4,026.78 and 2,621.66 is: 3,940.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.08 : 4,026.78 = 2,621.66 : x
  2. Step 2: Convert to fraction form
    2,679.08/4,026.78 = 2,621.66/x
  3. Step 3: Cross multiply
    2,679.08x = 4,026.78 × 2,621.66
  4. Step 4: Simplify right side
    2,679.08x = 10,556,827.92
  5. Step 5: Solve for x
    x = 10,556,827.92/2,679.08
  6. Step 6: Final answer
    x = 3,940.47

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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.