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Finding the Fourth Proportional to 5,512.70, 8,269.05 and 4,886.30

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Solution

The fourth proportional to 5,512.70, 8,269.05 and 4,886.30 is: 7,329.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,512.70 : 8,269.05 = 4,886.30 : x
  2. Step 2: Convert to fraction form
    5,512.70/8,269.05 = 4,886.30/x
  3. Step 3: Cross multiply
    5,512.70x = 8,269.05 × 4,886.30
  4. Step 4: Simplify right side
    5,512.70x = 40,405,059.02
  5. Step 5: Solve for x
    x = 40,405,059.02/5,512.70
  6. Step 6: Final answer
    x = 7,329.45

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Half 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.