Home / 3,681.94-5,081.26-2,170.34

Finding the Fourth Proportional to 3,681.94, 5,081.26 and 2,170.34

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Solution

The fourth proportional to 3,681.94, 5,081.26 and 2,170.34 is: 2,995.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.94 : 5,081.26 = 2,170.34 : x
  2. Step 2: Convert to fraction form
    3,681.94/5,081.26 = 2,170.34/x
  3. Step 3: Cross multiply
    3,681.94x = 5,081.26 × 2,170.34
  4. Step 4: Simplify right side
    3,681.94x = 11,028,061.83
  5. Step 5: Solve for x
    x = 11,028,061.83/3,681.94
  6. Step 6: Final answer
    x = 2,995.18

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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.