Home / 3,237.29-4,467.31-1,821.21

Finding the Fourth Proportional to 3,237.29, 4,467.31 and 1,821.21

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Solution

The fourth proportional to 3,237.29, 4,467.31 and 1,821.21 is: 2,513.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,237.29 : 4,467.31 = 1,821.21 : x
  2. Step 2: Convert to fraction form
    3,237.29/4,467.31 = 1,821.21/x
  3. Step 3: Cross multiply
    3,237.29x = 4,467.31 × 1,821.21
  4. Step 4: Simplify right side
    3,237.29x = 8,135,909.65
  5. Step 5: Solve for x
    x = 8,135,909.65/3,237.29
  6. Step 6: Final answer
    x = 2,513.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.