Home / 3,154.96-4,346.96-2,105.20

Finding the Fourth Proportional to 3,154.96, 4,346.96 and 2,105.20

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Solution

The fourth proportional to 3,154.96, 4,346.96 and 2,105.20 is: 2,900.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.96 : 4,346.96 = 2,105.20 : x
  2. Step 2: Convert to fraction form
    3,154.96/4,346.96 = 2,105.20/x
  3. Step 3: Cross multiply
    3,154.96x = 4,346.96 × 2,105.20
  4. Step 4: Simplify right side
    3,154.96x = 9,151,198.80
  5. Step 5: Solve for x
    x = 9,151,198.80/3,154.96
  6. Step 6: Final answer
    x = 2,900.58

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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.