Home / 3,154.44-4,354.03-2,109.54

Finding the Fourth Proportional to 3,154.44, 4,354.03 and 2,109.54

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Solution

The fourth proportional to 3,154.44, 4,354.03 and 2,109.54 is: 2,911.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.44 : 4,354.03 = 2,109.54 : x
  2. Step 2: Convert to fraction form
    3,154.44/4,354.03 = 2,109.54/x
  3. Step 3: Cross multiply
    3,154.44x = 4,354.03 × 2,109.54
  4. Step 4: Simplify right side
    3,154.44x = 9,185,000.45
  5. Step 5: Solve for x
    x = 9,185,000.45/3,154.44
  6. Step 6: Final answer
    x = 2,911.77

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1.5x scale

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.