Home / 3,675.50-5,513.25-1,078.46

Finding the Fourth Proportional to 3,675.50, 5,513.25 and 1,078.46

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Solution

The fourth proportional to 3,675.50, 5,513.25 and 1,078.46 is: 1,617.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,675.50 : 5,513.25 = 1,078.46 : x
  2. Step 2: Convert to fraction form
    3,675.50/5,513.25 = 1,078.46/x
  3. Step 3: Cross multiply
    3,675.50x = 5,513.25 × 1,078.46
  4. Step 4: Simplify right side
    3,675.50x = 5,945,819.60
  5. Step 5: Solve for x
    x = 5,945,819.60/3,675.50
  6. Step 6: Final answer
    x = 1,617.69

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Half scale
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Double scale
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Similar ratio
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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.