Home / 5,209.11-7,181.09-3,714.43

Finding the Fourth Proportional to 5,209.11, 7,181.09 and 3,714.43

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Solution

The fourth proportional to 5,209.11, 7,181.09 and 3,714.43 is: 5,120.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.11 : 7,181.09 = 3,714.43 : x
  2. Step 2: Convert to fraction form
    5,209.11/7,181.09 = 3,714.43/x
  3. Step 3: Cross multiply
    5,209.11x = 7,181.09 × 3,714.43
  4. Step 4: Simplify right side
    5,209.11x = 26,673,601.65
  5. Step 5: Solve for x
    x = 26,673,601.65/5,209.11
  6. Step 6: Final answer
    x = 5,120.57

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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.