Home / 4,128.26-5,699.21-3,181.98

Finding the Fourth Proportional to 4,128.26, 5,699.21 and 3,181.98

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Solution

The fourth proportional to 4,128.26, 5,699.21 and 3,181.98 is: 4,392.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.26 : 5,699.21 = 3,181.98 : x
  2. Step 2: Convert to fraction form
    4,128.26/5,699.21 = 3,181.98/x
  3. Step 3: Cross multiply
    4,128.26x = 5,699.21 × 3,181.98
  4. Step 4: Simplify right side
    4,128.26x = 18,134,772.24
  5. Step 5: Solve for x
    x = 18,134,772.24/4,128.26
  6. Step 6: Final answer
    x = 4,392.84

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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.