Home / 1,935.54-2,671.09-1,138.92

Finding the Fourth Proportional to 1,935.54, 2,671.09 and 1,138.92

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Solution

The fourth proportional to 1,935.54, 2,671.09 and 1,138.92 is: 1,571.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.54 : 2,671.09 = 1,138.92 : x
  2. Step 2: Convert to fraction form
    1,935.54/2,671.09 = 1,138.92/x
  3. Step 3: Cross multiply
    1,935.54x = 2,671.09 × 1,138.92
  4. Step 4: Simplify right side
    1,935.54x = 3,042,157.82
  5. Step 5: Solve for x
    x = 3,042,157.82/1,935.54
  6. Step 6: Final answer
    x = 1,571.74

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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.