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Finding the Fourth Proportional to 3,540.06, 5,310.08 and 943

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Solution

The fourth proportional to 3,540.06, 5,310.08 and 943 is: 1,414.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.06 : 5,310.08 = 943 : x
  2. Step 2: Convert to fraction form
    3,540.06/5,310.08 = 943/x
  3. Step 3: Cross multiply
    3,540.06x = 5,310.08 × 943
  4. Step 4: Simplify right side
    3,540.06x = 5,007,405.44
  5. Step 5: Solve for x
    x = 5,007,405.44/3,540.06
  6. Step 6: Final answer
    x = 1,414.50

Related Problems

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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.