Home / 1,638.20-2,453.37-895.99

Finding the Fourth Proportional to 1,638.20, 2,453.37 and 895.99

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Solution

The fourth proportional to 1,638.20, 2,453.37 and 895.99 is: 1,341.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638.20 : 2,453.37 = 895.99 : x
  2. Step 2: Convert to fraction form
    1,638.20/2,453.37 = 895.99/x
  3. Step 3: Cross multiply
    1,638.20x = 2,453.37 × 895.99
  4. Step 4: Simplify right side
    1,638.20x = 2,198,186.34
  5. Step 5: Solve for x
    x = 2,198,186.34/1,638.20
  6. Step 6: Final answer
    x = 1,341.83

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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.