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Finding the Fourth Proportional to 3,568.93, 5,353.09 and 971.87

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Solution

The fourth proportional to 3,568.93, 5,353.09 and 971.87 is: 1,457.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,568.93 : 5,353.09 = 971.87 : x
  2. Step 2: Convert to fraction form
    3,568.93/5,353.09 = 971.87/x
  3. Step 3: Cross multiply
    3,568.93x = 5,353.09 × 971.87
  4. Step 4: Simplify right side
    3,568.93x = 5,202,478.38
  5. Step 5: Solve for x
    x = 5,202,478.38/3,568.93
  6. Step 6: Final answer
    x = 1,457.71

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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.