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Finding the Fourth Proportional to 1,739.32, 2,612.82 and 1,355.32

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Solution

The fourth proportional to 1,739.32, 2,612.82 and 1,355.32 is: 2,035.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,739.32 : 2,612.82 = 1,355.32 : x
  2. Step 2: Convert to fraction form
    1,739.32/2,612.82 = 1,355.32/x
  3. Step 3: Cross multiply
    1,739.32x = 2,612.82 × 1,355.32
  4. Step 4: Simplify right side
    1,739.32x = 3,541,207.20
  5. Step 5: Solve for x
    x = 3,541,207.20/1,739.32
  6. Step 6: Final answer
    x = 2,035.97

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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.