Home / 1,638.58-2,453.04-1,082.26

Finding the Fourth Proportional to 1,638.58, 2,453.04 and 1,082.26

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Solution

The fourth proportional to 1,638.58, 2,453.04 and 1,082.26 is: 1,620.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638.58 : 2,453.04 = 1,082.26 : x
  2. Step 2: Convert to fraction form
    1,638.58/2,453.04 = 1,082.26/x
  3. Step 3: Cross multiply
    1,638.58x = 2,453.04 × 1,082.26
  4. Step 4: Simplify right side
    1,638.58x = 2,654,827.07
  5. Step 5: Solve for x
    x = 2,654,827.07/1,638.58
  6. Step 6: Final answer
    x = 1,620.20

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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.