Home / 3,812.36-5,261.81-2,486.18

Finding the Fourth Proportional to 3,812.36, 5,261.81 and 2,486.18

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Solution

The fourth proportional to 3,812.36, 5,261.81 and 2,486.18 is: 3,431.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.36 : 5,261.81 = 2,486.18 : x
  2. Step 2: Convert to fraction form
    3,812.36/5,261.81 = 2,486.18/x
  3. Step 3: Cross multiply
    3,812.36x = 5,261.81 × 2,486.18
  4. Step 4: Simplify right side
    3,812.36x = 13,081,768.05
  5. Step 5: Solve for x
    x = 13,081,768.05/3,812.36
  6. Step 6: Final answer
    x = 3,431.41

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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.