Home / 3,218.25-4,827.96-1,637.85

Finding the Fourth Proportional to 3,218.25, 4,827.96 and 1,637.85

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Solution

The fourth proportional to 3,218.25, 4,827.96 and 1,637.85 is: 2,457.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.25 : 4,827.96 = 1,637.85 : x
  2. Step 2: Convert to fraction form
    3,218.25/4,827.96 = 1,637.85/x
  3. Step 3: Cross multiply
    3,218.25x = 4,827.96 × 1,637.85
  4. Step 4: Simplify right side
    3,218.25x = 7,907,474.29
  5. Step 5: Solve for x
    x = 7,907,474.29/3,218.25
  6. Step 6: Final answer
    x = 2,457.07

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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.