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Finding the Fourth Proportional to 2,704.32, 3,729.48 and 1,707.87

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Solution

The fourth proportional to 2,704.32, 3,729.48 and 1,707.87 is: 2,355.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,704.32 : 3,729.48 = 1,707.87 : x
  2. Step 2: Convert to fraction form
    2,704.32/3,729.48 = 1,707.87/x
  3. Step 3: Cross multiply
    2,704.32x = 3,729.48 × 1,707.87
  4. Step 4: Simplify right side
    2,704.32x = 6,369,467.01
  5. Step 5: Solve for x
    x = 6,369,467.01/2,704.32
  6. Step 6: Final answer
    x = 2,355.29

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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.