Home / 3,979.68-5,969.59-2,223.67

Finding the Fourth Proportional to 3,979.68, 5,969.59 and 2,223.67

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Solution

The fourth proportional to 3,979.68, 5,969.59 and 2,223.67 is: 3,335.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.68 : 5,969.59 = 2,223.67 : x
  2. Step 2: Convert to fraction form
    3,979.68/5,969.59 = 2,223.67/x
  3. Step 3: Cross multiply
    3,979.68x = 5,969.59 × 2,223.67
  4. Step 4: Simplify right side
    3,979.68x = 13,274,377.71
  5. Step 5: Solve for x
    x = 13,274,377.71/3,979.68
  6. Step 6: Final answer
    x = 3,335.54

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1.5x scale

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.