Home / 4,138.51-5,699.40-3,640.97

Finding the Fourth Proportional to 4,138.51, 5,699.40 and 3,640.97

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Solution

The fourth proportional to 4,138.51, 5,699.40 and 3,640.97 is: 5,014.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.51 : 5,699.40 = 3,640.97 : x
  2. Step 2: Convert to fraction form
    4,138.51/5,699.40 = 3,640.97/x
  3. Step 3: Cross multiply
    4,138.51x = 5,699.40 × 3,640.97
  4. Step 4: Simplify right side
    4,138.51x = 20,751,344.42
  5. Step 5: Solve for x
    x = 20,751,344.42/4,138.51
  6. Step 6: Final answer
    x = 5,014.21

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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.