Home / 3,719.90-5,133.63-2,228.06

Finding the Fourth Proportional to 3,719.90, 5,133.63 and 2,228.06

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Solution

The fourth proportional to 3,719.90, 5,133.63 and 2,228.06 is: 3,074.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.90 : 5,133.63 = 2,228.06 : x
  2. Step 2: Convert to fraction form
    3,719.90/5,133.63 = 2,228.06/x
  3. Step 3: Cross multiply
    3,719.90x = 5,133.63 × 2,228.06
  4. Step 4: Simplify right side
    3,719.90x = 11,438,040.14
  5. Step 5: Solve for x
    x = 11,438,040.14/3,719.90
  6. Step 6: Final answer
    x = 3,074.82

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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.