Home / 3,449.20-5,166.60-1,908.40

Finding the Fourth Proportional to 3,449.20, 5,166.60 and 1,908.40

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Solution

The fourth proportional to 3,449.20, 5,166.60 and 1,908.40 is: 2,858.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.20 : 5,166.60 = 1,908.40 : x
  2. Step 2: Convert to fraction form
    3,449.20/5,166.60 = 1,908.40/x
  3. Step 3: Cross multiply
    3,449.20x = 5,166.60 × 1,908.40
  4. Step 4: Simplify right side
    3,449.20x = 9,859,939.44
  5. Step 5: Solve for x
    x = 9,859,939.44/3,449.20
  6. Step 6: Final answer
    x = 2,858.62

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1.5x scale

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.