Home / 2,491.45-3,739.62-1,900.96

Finding the Fourth Proportional to 2,491.45, 3,739.62 and 1,900.96

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Solution

The fourth proportional to 2,491.45, 3,739.62 and 1,900.96 is: 2,853.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.45 : 3,739.62 = 1,900.96 : x
  2. Step 2: Convert to fraction form
    2,491.45/3,739.62 = 1,900.96/x
  3. Step 3: Cross multiply
    2,491.45x = 3,739.62 × 1,900.96
  4. Step 4: Simplify right side
    2,491.45x = 7,108,868.04
  5. Step 5: Solve for x
    x = 7,108,868.04/2,491.45
  6. Step 6: Final answer
    x = 2,853.31

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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.