Home / 2,118.44-2,922.76-1,372.98

Finding the Fourth Proportional to 2,118.44, 2,922.76 and 1,372.98

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Solution

The fourth proportional to 2,118.44, 2,922.76 and 1,372.98 is: 1,894.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.44 : 2,922.76 = 1,372.98 : x
  2. Step 2: Convert to fraction form
    2,118.44/2,922.76 = 1,372.98/x
  3. Step 3: Cross multiply
    2,118.44x = 2,922.76 × 1,372.98
  4. Step 4: Simplify right side
    2,118.44x = 4,012,891.02
  5. Step 5: Solve for x
    x = 4,012,891.02/2,118.44
  6. Step 6: Final answer
    x = 1,894.27

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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.