Home / 5,486.43-8,228.79-1,788.63

Finding the Fourth Proportional to 5,486.43, 8,228.79 and 1,788.63

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Solution

The fourth proportional to 5,486.43, 8,228.79 and 1,788.63 is: 2,682.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,486.43 : 8,228.79 = 1,788.63 : x
  2. Step 2: Convert to fraction form
    5,486.43/8,228.79 = 1,788.63/x
  3. Step 3: Cross multiply
    5,486.43x = 8,228.79 × 1,788.63
  4. Step 4: Simplify right side
    5,486.43x = 14,718,260.66
  5. Step 5: Solve for x
    x = 14,718,260.66/5,486.43
  6. Step 6: Final answer
    x = 2,682.67

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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.