Home / 2,911-4,360.92-2,291.44

Finding the Fourth Proportional to 2,911, 4,360.92 and 2,291.44

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Solution

The fourth proportional to 2,911, 4,360.92 and 2,291.44 is: 3,432.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911 : 4,360.92 = 2,291.44 : x
  2. Step 2: Convert to fraction form
    2,911/4,360.92 = 2,291.44/x
  3. Step 3: Cross multiply
    2,911x = 4,360.92 × 2,291.44
  4. Step 4: Simplify right side
    2,911x = 9,992,786.52
  5. Step 5: Solve for x
    x = 9,992,786.52/2,911
  6. Step 6: Final answer
    x = 3,432.77

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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.