Home / 2,235.32-3,084.92-1,240.92

Finding the Fourth Proportional to 2,235.32, 3,084.92 and 1,240.92

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Solution

The fourth proportional to 2,235.32, 3,084.92 and 1,240.92 is: 1,712.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.32 : 3,084.92 = 1,240.92 : x
  2. Step 2: Convert to fraction form
    2,235.32/3,084.92 = 1,240.92/x
  3. Step 3: Cross multiply
    2,235.32x = 3,084.92 × 1,240.92
  4. Step 4: Simplify right side
    2,235.32x = 3,828,138.93
  5. Step 5: Solve for x
    x = 3,828,138.93/2,235.32
  6. Step 6: Final answer
    x = 1,712.57

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Half scale
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Double 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.