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Finding the Fourth Proportional to 5,605.50, 8,408.25 and 1,445.52

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Solution

The fourth proportional to 5,605.50, 8,408.25 and 1,445.52 is: 2,168.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,605.50 : 8,408.25 = 1,445.52 : x
  2. Step 2: Convert to fraction form
    5,605.50/8,408.25 = 1,445.52/x
  3. Step 3: Cross multiply
    5,605.50x = 8,408.25 × 1,445.52
  4. Step 4: Simplify right side
    5,605.50x = 12,154,293.54
  5. Step 5: Solve for x
    x = 12,154,293.54/5,605.50
  6. Step 6: Final answer
    x = 2,168.28

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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.