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Finding the Fourth Proportional to 2,660.81, 3,672.02 and 1,481.87

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Solution

The fourth proportional to 2,660.81, 3,672.02 and 1,481.87 is: 2,045.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660.81 : 3,672.02 = 1,481.87 : x
  2. Step 2: Convert to fraction form
    2,660.81/3,672.02 = 1,481.87/x
  3. Step 3: Cross multiply
    2,660.81x = 3,672.02 × 1,481.87
  4. Step 4: Simplify right side
    2,660.81x = 5,441,430.51
  5. Step 5: Solve for x
    x = 5,441,430.51/2,660.81
  6. Step 6: Final answer
    x = 2,045.03

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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.