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Finding the Fourth Proportional to 1,577.07, 2,365.92 and 481.34

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Solution

The fourth proportional to 1,577.07, 2,365.92 and 481.34 is: 722.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577.07 : 2,365.92 = 481.34 : x
  2. Step 2: Convert to fraction form
    1,577.07/2,365.92 = 481.34/x
  3. Step 3: Cross multiply
    1,577.07x = 2,365.92 × 481.34
  4. Step 4: Simplify right side
    1,577.07x = 1,138,817.85
  5. Step 5: Solve for x
    x = 1,138,817.85/1,577.07
  6. Step 6: Final answer
    x = 722.11

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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.