Home / 2,455.20-3,388.19-1,336.14

Finding the Fourth Proportional to 2,455.20, 3,388.19 and 1,336.14

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Solution

The fourth proportional to 2,455.20, 3,388.19 and 1,336.14 is: 1,843.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.20 : 3,388.19 = 1,336.14 : x
  2. Step 2: Convert to fraction form
    2,455.20/3,388.19 = 1,336.14/x
  3. Step 3: Cross multiply
    2,455.20x = 3,388.19 × 1,336.14
  4. Step 4: Simplify right side
    2,455.20x = 4,527,089.51
  5. Step 5: Solve for x
    x = 4,527,089.51/2,455.20
  6. Step 6: Final answer
    x = 1,843.88

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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.