Home / 3,491.80-5,233.25-1,638.83

Finding the Fourth Proportional to 3,491.80, 5,233.25 and 1,638.83

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Solution

The fourth proportional to 3,491.80, 5,233.25 and 1,638.83 is: 2,456.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.80 : 5,233.25 = 1,638.83 : x
  2. Step 2: Convert to fraction form
    3,491.80/5,233.25 = 1,638.83/x
  3. Step 3: Cross multiply
    3,491.80x = 5,233.25 × 1,638.83
  4. Step 4: Simplify right side
    3,491.80x = 8,576,372.74
  5. Step 5: Solve for x
    x = 8,576,372.74/3,491.80
  6. Step 6: Final answer
    x = 2,456.15

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1.5x scale

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.