Home / 2,205.70-3,043.54-1,261.37

Finding the Fourth Proportional to 2,205.70, 3,043.54 and 1,261.37

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Solution

The fourth proportional to 2,205.70, 3,043.54 and 1,261.37 is: 1,740.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.70 : 3,043.54 = 1,261.37 : x
  2. Step 2: Convert to fraction form
    2,205.70/3,043.54 = 1,261.37/x
  3. Step 3: Cross multiply
    2,205.70x = 3,043.54 × 1,261.37
  4. Step 4: Simplify right side
    2,205.70x = 3,839,039.24
  5. Step 5: Solve for x
    x = 3,839,039.24/2,205.70
  6. Step 6: Final answer
    x = 1,740.51

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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.