Home / 2,205.62-3,043.84-1,261.56

Finding the Fourth Proportional to 2,205.62, 3,043.84 and 1,261.56

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Solution

The fourth proportional to 2,205.62, 3,043.84 and 1,261.56 is: 1,741.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.62 : 3,043.84 = 1,261.56 : x
  2. Step 2: Convert to fraction form
    2,205.62/3,043.84 = 1,261.56/x
  3. Step 3: Cross multiply
    2,205.62x = 3,043.84 × 1,261.56
  4. Step 4: Simplify right side
    2,205.62x = 3,839,986.79
  5. Step 5: Solve for x
    x = 3,839,986.79/2,205.62
  6. Step 6: Final answer
    x = 1,741.00

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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.