Home / 3,718.85-5,131.90-2,226.01

Finding the Fourth Proportional to 3,718.85, 5,131.90 and 2,226.01

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Solution

The fourth proportional to 3,718.85, 5,131.90 and 2,226.01 is: 3,071.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.85 : 5,131.90 = 2,226.01 : x
  2. Step 2: Convert to fraction form
    3,718.85/5,131.90 = 2,226.01/x
  3. Step 3: Cross multiply
    3,718.85x = 5,131.90 × 2,226.01
  4. Step 4: Simplify right side
    3,718.85x = 11,423,660.72
  5. Step 5: Solve for x
    x = 11,423,660.72/3,718.85
  6. Step 6: Final answer
    x = 3,071.83

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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.