Home / 2,664.90-3,669.30-2,291.22

Finding the Fourth Proportional to 2,664.90, 3,669.30 and 2,291.22

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Solution

The fourth proportional to 2,664.90, 3,669.30 and 2,291.22 is: 3,154.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664.90 : 3,669.30 = 2,291.22 : x
  2. Step 2: Convert to fraction form
    2,664.90/3,669.30 = 2,291.22/x
  3. Step 3: Cross multiply
    2,664.90x = 3,669.30 × 2,291.22
  4. Step 4: Simplify right side
    2,664.90x = 8,407,173.55
  5. Step 5: Solve for x
    x = 8,407,173.55/2,664.90
  6. Step 6: Final answer
    x = 3,154.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.