Home / 2,235.06-3,084.39-1,240.35

Finding the Fourth Proportional to 2,235.06, 3,084.39 and 1,240.35

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Solution

The fourth proportional to 2,235.06, 3,084.39 and 1,240.35 is: 1,711.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.06 : 3,084.39 = 1,240.35 : x
  2. Step 2: Convert to fraction form
    2,235.06/3,084.39 = 1,240.35/x
  3. Step 3: Cross multiply
    2,235.06x = 3,084.39 × 1,240.35
  4. Step 4: Simplify right side
    2,235.06x = 3,825,723.14
  5. Step 5: Solve for x
    x = 3,825,723.14/2,235.06
  6. Step 6: Final answer
    x = 1,711.69

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Half scale
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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.