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Finding the Fourth Proportional to 3,661.65, 5,496.12 and 2,018.97

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Solution

The fourth proportional to 3,661.65, 5,496.12 and 2,018.97 is: 3,030.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,661.65 : 5,496.12 = 2,018.97 : x
  2. Step 2: Convert to fraction form
    3,661.65/5,496.12 = 2,018.97/x
  3. Step 3: Cross multiply
    3,661.65x = 5,496.12 × 2,018.97
  4. Step 4: Simplify right side
    3,661.65x = 11,096,501.40
  5. Step 5: Solve for x
    x = 11,096,501.40/3,661.65
  6. Step 6: Final answer
    x = 3,030.46

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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.