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Finding the Fourth Proportional to 6,081.60, 8,393.60 and 4,591.20

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Solution

The fourth proportional to 6,081.60, 8,393.60 and 4,591.20 is: 6,336.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,081.60 : 8,393.60 = 4,591.20 : x
  2. Step 2: Convert to fraction form
    6,081.60/8,393.60 = 4,591.20/x
  3. Step 3: Cross multiply
    6,081.60x = 8,393.60 × 4,591.20
  4. Step 4: Simplify right side
    6,081.60x = 38,536,696.32
  5. Step 5: Solve for x
    x = 38,536,696.32/6,081.60
  6. Step 6: Final answer
    x = 6,336.60

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.