Home / 3,719.45-5,579.36-2,074.74

Finding the Fourth Proportional to 3,719.45, 5,579.36 and 2,074.74

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Solution

The fourth proportional to 3,719.45, 5,579.36 and 2,074.74 is: 3,112.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.45 : 5,579.36 = 2,074.74 : x
  2. Step 2: Convert to fraction form
    3,719.45/5,579.36 = 2,074.74/x
  3. Step 3: Cross multiply
    3,719.45x = 5,579.36 × 2,074.74
  4. Step 4: Simplify right side
    3,719.45x = 11,575,710.99
  5. Step 5: Solve for x
    x = 11,575,710.99/3,719.45
  6. Step 6: Final answer
    x = 3,112.21

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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.