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Finding the Fourth Proportional to 2,699.43, 3,723.60 and 1,860.09

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Solution

The fourth proportional to 2,699.43, 3,723.60 and 1,860.09 is: 2,565.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,699.43 : 3,723.60 = 1,860.09 : x
  2. Step 2: Convert to fraction form
    2,699.43/3,723.60 = 1,860.09/x
  3. Step 3: Cross multiply
    2,699.43x = 3,723.60 × 1,860.09
  4. Step 4: Simplify right side
    2,699.43x = 6,926,218.91
  5. Step 5: Solve for x
    x = 6,926,218.91/2,699.43
  6. Step 6: Final answer
    x = 2,565.81

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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.