Home / 3,211.87-4,434.00-2,018.59

Finding the Fourth Proportional to 3,211.87, 4,434.00 and 2,018.59

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Solution

The fourth proportional to 3,211.87, 4,434.00 and 2,018.59 is: 2,786.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.87 : 4,434.00 = 2,018.59 : x
  2. Step 2: Convert to fraction form
    3,211.87/4,434.00 = 2,018.59/x
  3. Step 3: Cross multiply
    3,211.87x = 4,434.00 × 2,018.59
  4. Step 4: Simplify right side
    3,211.87x = 8,950,417.97
  5. Step 5: Solve for x
    x = 8,950,417.97/3,211.87
  6. Step 6: Final answer
    x = 2,786.67

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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.