Home / 3,415.82-5,123.68-1,107.32

Finding the Fourth Proportional to 3,415.82, 5,123.68 and 1,107.32

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Solution

The fourth proportional to 3,415.82, 5,123.68 and 1,107.32 is: 1,660.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.82 : 5,123.68 = 1,107.32 : x
  2. Step 2: Convert to fraction form
    3,415.82/5,123.68 = 1,107.32/x
  3. Step 3: Cross multiply
    3,415.82x = 5,123.68 × 1,107.32
  4. Step 4: Simplify right side
    3,415.82x = 5,673,553.34
  5. Step 5: Solve for x
    x = 5,673,553.34/3,415.82
  6. Step 6: Final answer
    x = 1,660.96

Related Problems

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.