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Finding the Fourth Proportional to 2,530.60, 3,795.38 and 681.29

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Solution

The fourth proportional to 2,530.60, 3,795.38 and 681.29 is: 1,021.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,530.60 : 3,795.38 = 681.29 : x
  2. Step 2: Convert to fraction form
    2,530.60/3,795.38 = 681.29/x
  3. Step 3: Cross multiply
    2,530.60x = 3,795.38 × 681.29
  4. Step 4: Simplify right side
    2,530.60x = 2,585,740.09
  5. Step 5: Solve for x
    x = 2,585,740.09/2,530.60
  6. Step 6: Final answer
    x = 1,021.79

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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.