Home / 2,455.80-3,388.94-1,336.76

Finding the Fourth Proportional to 2,455.80, 3,388.94 and 1,336.76

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Solution

The fourth proportional to 2,455.80, 3,388.94 and 1,336.76 is: 1,844.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.80 : 3,388.94 = 1,336.76 : x
  2. Step 2: Convert to fraction form
    2,455.80/3,388.94 = 1,336.76/x
  3. Step 3: Cross multiply
    2,455.80x = 3,388.94 × 1,336.76
  4. Step 4: Simplify right side
    2,455.80x = 4,530,199.43
  5. Step 5: Solve for x
    x = 4,530,199.43/2,455.80
  6. Step 6: Final answer
    x = 1,844.69

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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.