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Finding the Fourth Proportional to 3,260.60, 4,499.82 and 3,113

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Solution

The fourth proportional to 3,260.60, 4,499.82 and 3,113 is: 4,296.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.60 : 4,499.82 = 3,113 : x
  2. Step 2: Convert to fraction form
    3,260.60/4,499.82 = 3,113/x
  3. Step 3: Cross multiply
    3,260.60x = 4,499.82 × 3,113
  4. Step 4: Simplify right side
    3,260.60x = 14,007,939.66
  5. Step 5: Solve for x
    x = 14,007,939.66/3,260.60
  6. Step 6: Final answer
    x = 4,296.12

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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.