Home / 2,121.63-3,184.44-1,082.37

Finding the Fourth Proportional to 2,121.63, 3,184.44 and 1,082.37

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Solution

The fourth proportional to 2,121.63, 3,184.44 and 1,082.37 is: 1,624.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.63 : 3,184.44 = 1,082.37 : x
  2. Step 2: Convert to fraction form
    2,121.63/3,184.44 = 1,082.37/x
  3. Step 3: Cross multiply
    2,121.63x = 3,184.44 × 1,082.37
  4. Step 4: Simplify right side
    2,121.63x = 3,446,742.32
  5. Step 5: Solve for x
    x = 3,446,742.32/2,121.63
  6. Step 6: Final answer
    x = 1,624.57

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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.