Home / 3,317.21-4,976.83-1,857.39

Finding the Fourth Proportional to 3,317.21, 4,976.83 and 1,857.39

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Solution

The fourth proportional to 3,317.21, 4,976.83 and 1,857.39 is: 2,786.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.21 : 4,976.83 = 1,857.39 : x
  2. Step 2: Convert to fraction form
    3,317.21/4,976.83 = 1,857.39/x
  3. Step 3: Cross multiply
    3,317.21x = 4,976.83 × 1,857.39
  4. Step 4: Simplify right side
    3,317.21x = 9,243,909.63
  5. Step 5: Solve for x
    x = 9,243,909.63/3,317.21
  6. Step 6: Final answer
    x = 2,786.66

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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.