Home / 5,518.26-8,278.79-1,622.67

Finding the Fourth Proportional to 5,518.26, 8,278.79 and 1,622.67

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Solution

The fourth proportional to 5,518.26, 8,278.79 and 1,622.67 is: 2,434.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.26 : 8,278.79 = 1,622.67 : x
  2. Step 2: Convert to fraction form
    5,518.26/8,278.79 = 1,622.67/x
  3. Step 3: Cross multiply
    5,518.26x = 8,278.79 × 1,622.67
  4. Step 4: Simplify right side
    5,518.26x = 13,433,736.06
  5. Step 5: Solve for x
    x = 13,433,736.06/5,518.26
  6. Step 6: Final answer
    x = 2,434.42

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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.