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Finding the Fourth Proportional to 3,013.72, 4,157.34 and 1,771

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Solution

The fourth proportional to 3,013.72, 4,157.34 and 1,771 is: 2,443.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.72 : 4,157.34 = 1,771 : x
  2. Step 2: Convert to fraction form
    3,013.72/4,157.34 = 1,771/x
  3. Step 3: Cross multiply
    3,013.72x = 4,157.34 × 1,771
  4. Step 4: Simplify right side
    3,013.72x = 7,362,649.14
  5. Step 5: Solve for x
    x = 7,362,649.14/3,013.72
  6. Step 6: Final answer
    x = 2,443.04

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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.