Home / 5,518.13-8,275.44-1,819.67

Finding the Fourth Proportional to 5,518.13, 8,275.44 and 1,819.67

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Solution

The fourth proportional to 5,518.13, 8,275.44 and 1,819.67 is: 2,728.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.13 : 8,275.44 = 1,819.67 : x
  2. Step 2: Convert to fraction form
    5,518.13/8,275.44 = 1,819.67/x
  3. Step 3: Cross multiply
    5,518.13x = 8,275.44 × 1,819.67
  4. Step 4: Simplify right side
    5,518.13x = 15,058,569.90
  5. Step 5: Solve for x
    x = 15,058,569.90/5,518.13
  6. Step 6: Final answer
    x = 2,728.93

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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.