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Finding the Fourth Proportional to 4,321.77, 6,483.26 and 1,399.49

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Solution

The fourth proportional to 4,321.77, 6,483.26 and 1,399.49 is: 2,099.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.77 : 6,483.26 = 1,399.49 : x
  2. Step 2: Convert to fraction form
    4,321.77/6,483.26 = 1,399.49/x
  3. Step 3: Cross multiply
    4,321.77x = 6,483.26 × 1,399.49
  4. Step 4: Simplify right side
    4,321.77x = 9,073,257.54
  5. Step 5: Solve for x
    x = 9,073,257.54/4,321.77
  6. Step 6: Final answer
    x = 2,099.43

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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.