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Finding the Fourth Proportional to 1,717.56, 2,367 and 1,577.88

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Solution

The fourth proportional to 1,717.56, 2,367 and 1,577.88 is: 2,174.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.56 : 2,367 = 1,577.88 : x
  2. Step 2: Convert to fraction form
    1,717.56/2,367 = 1,577.88/x
  3. Step 3: Cross multiply
    1,717.56x = 2,367 × 1,577.88
  4. Step 4: Simplify right side
    1,717.56x = 3,734,841.96
  5. Step 5: Solve for x
    x = 3,734,841.96/1,717.56
  6. Step 6: Final answer
    x = 2,174.50

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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.