Home / 2,235.58-3,084.84-1,240.61

Finding the Fourth Proportional to 2,235.58, 3,084.84 and 1,240.61

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Solution

The fourth proportional to 2,235.58, 3,084.84 and 1,240.61 is: 1,711.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.58 : 3,084.84 = 1,240.61 : x
  2. Step 2: Convert to fraction form
    2,235.58/3,084.84 = 1,240.61/x
  3. Step 3: Cross multiply
    2,235.58x = 3,084.84 × 1,240.61
  4. Step 4: Simplify right side
    2,235.58x = 3,827,067.93
  5. Step 5: Solve for x
    x = 3,827,067.93/2,235.58
  6. Step 6: Final answer
    x = 1,711.89

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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.