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Finding the Fourth Proportional to 5,008.60, 7,504.60 and 1,719.88

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Solution

The fourth proportional to 5,008.60, 7,504.60 and 1,719.88 is: 2,576.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,008.60 : 7,504.60 = 1,719.88 : x
  2. Step 2: Convert to fraction form
    5,008.60/7,504.60 = 1,719.88/x
  3. Step 3: Cross multiply
    5,008.60x = 7,504.60 × 1,719.88
  4. Step 4: Simplify right side
    5,008.60x = 12,907,011.45
  5. Step 5: Solve for x
    x = 12,907,011.45/5,008.60
  6. Step 6: Final answer
    x = 2,576.97

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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.