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Finding the Fourth Proportional to 3,015.72, 4,160.10 and 1,773

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Solution

The fourth proportional to 3,015.72, 4,160.10 and 1,773 is: 2,445.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.72 : 4,160.10 = 1,773 : x
  2. Step 2: Convert to fraction form
    3,015.72/4,160.10 = 1,773/x
  3. Step 3: Cross multiply
    3,015.72x = 4,160.10 × 1,773
  4. Step 4: Simplify right side
    3,015.72x = 7,375,857.30
  5. Step 5: Solve for x
    x = 7,375,857.30/3,015.72
  6. Step 6: Final answer
    x = 2,445.80

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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.