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Finding the Fourth Proportional to 1,699.08, 2,550.19 and 725.86

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Solution

The fourth proportional to 1,699.08, 2,550.19 and 725.86 is: 1,089.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,699.08 : 2,550.19 = 725.86 : x
  2. Step 2: Convert to fraction form
    1,699.08/2,550.19 = 725.86/x
  3. Step 3: Cross multiply
    1,699.08x = 2,550.19 × 725.86
  4. Step 4: Simplify right side
    1,699.08x = 1,851,080.91
  5. Step 5: Solve for x
    x = 1,851,080.91/1,699.08
  6. Step 6: Final answer
    x = 1,089.46

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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.