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Finding the Fourth Proportional to 2,874.99, 4,317.95 and 1,786.96

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Solution

The fourth proportional to 2,874.99, 4,317.95 and 1,786.96 is: 2,683.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.99 : 4,317.95 = 1,786.96 : x
  2. Step 2: Convert to fraction form
    2,874.99/4,317.95 = 1,786.96/x
  3. Step 3: Cross multiply
    2,874.99x = 4,317.95 × 1,786.96
  4. Step 4: Simplify right side
    2,874.99x = 7,715,973.41
  5. Step 5: Solve for x
    x = 7,715,973.41/2,874.99
  6. Step 6: Final answer
    x = 2,683.83

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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.