Home / 2,205.68-3,043.73-1,261.42

Finding the Fourth Proportional to 2,205.68, 3,043.73 and 1,261.42

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Solution

The fourth proportional to 2,205.68, 3,043.73 and 1,261.42 is: 1,740.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.68 : 3,043.73 = 1,261.42 : x
  2. Step 2: Convert to fraction form
    2,205.68/3,043.73 = 1,261.42/x
  3. Step 3: Cross multiply
    2,205.68x = 3,043.73 × 1,261.42
  4. Step 4: Simplify right side
    2,205.68x = 3,839,427.47
  5. Step 5: Solve for x
    x = 3,839,427.47/2,205.68
  6. Step 6: Final answer
    x = 1,740.70

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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.