Home / 2,381.81-3,571.29-2,058.62

Finding the Fourth Proportional to 2,381.81, 3,571.29 and 2,058.62

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Solution

The fourth proportional to 2,381.81, 3,571.29 and 2,058.62 is: 3,086.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.81 : 3,571.29 = 2,058.62 : x
  2. Step 2: Convert to fraction form
    2,381.81/3,571.29 = 2,058.62/x
  3. Step 3: Cross multiply
    2,381.81x = 3,571.29 × 2,058.62
  4. Step 4: Simplify right side
    2,381.81x = 7,351,911.16
  5. Step 5: Solve for x
    x = 7,351,911.16/2,381.81
  6. Step 6: Final answer
    x = 3,086.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.