Home / 5,745.38-7,928.42-3,511

Finding the Fourth Proportional to 5,745.38, 7,928.42 and 3,511

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Solution

The fourth proportional to 5,745.38, 7,928.42 and 3,511 is: 4,845.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,745.38 : 7,928.42 = 3,511 : x
  2. Step 2: Convert to fraction form
    5,745.38/7,928.42 = 3,511/x
  3. Step 3: Cross multiply
    5,745.38x = 7,928.42 × 3,511
  4. Step 4: Simplify right side
    5,745.38x = 27,836,682.62
  5. Step 5: Solve for x
    x = 27,836,682.62/5,745.38
  6. Step 6: Final answer
    x = 4,845.06

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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.