Home / 1,879.21-2,592.44-1,216.28

Finding the Fourth Proportional to 1,879.21, 2,592.44 and 1,216.28

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Solution

The fourth proportional to 1,879.21, 2,592.44 and 1,216.28 is: 1,677.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879.21 : 2,592.44 = 1,216.28 : x
  2. Step 2: Convert to fraction form
    1,879.21/2,592.44 = 1,216.28/x
  3. Step 3: Cross multiply
    1,879.21x = 2,592.44 × 1,216.28
  4. Step 4: Simplify right side
    1,879.21x = 3,153,137.88
  5. Step 5: Solve for x
    x = 3,153,137.88/1,879.21
  6. Step 6: Final answer
    x = 1,677.90

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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.