Home / 2,625.21-3,939.03-1,637.79

Finding the Fourth Proportional to 2,625.21, 3,939.03 and 1,637.79

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Solution

The fourth proportional to 2,625.21, 3,939.03 and 1,637.79 is: 2,457.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.21 : 3,939.03 = 1,637.79 : x
  2. Step 2: Convert to fraction form
    2,625.21/3,939.03 = 1,637.79/x
  3. Step 3: Cross multiply
    2,625.21x = 3,939.03 × 1,637.79
  4. Step 4: Simplify right side
    2,625.21x = 6,451,289.17
  5. Step 5: Solve for x
    x = 6,451,289.17/2,625.21
  6. Step 6: Final answer
    x = 2,457.44

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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.