Home / 3,108.90-4,663.35-1,028.34

Finding the Fourth Proportional to 3,108.90, 4,663.35 and 1,028.34

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Solution

The fourth proportional to 3,108.90, 4,663.35 and 1,028.34 is: 1,542.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.90 : 4,663.35 = 1,028.34 : x
  2. Step 2: Convert to fraction form
    3,108.90/4,663.35 = 1,028.34/x
  3. Step 3: Cross multiply
    3,108.90x = 4,663.35 × 1,028.34
  4. Step 4: Simplify right side
    3,108.90x = 4,795,515.86
  5. Step 5: Solve for x
    x = 4,795,515.86/3,108.90
  6. Step 6: Final answer
    x = 1,542.51

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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.