Home / 5,518.12-8,277.42-1,820.67

Finding the Fourth Proportional to 5,518.12, 8,277.42 and 1,820.67

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Solution

The fourth proportional to 5,518.12, 8,277.42 and 1,820.67 is: 2,731.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.12 : 8,277.42 = 1,820.67 : x
  2. Step 2: Convert to fraction form
    5,518.12/8,277.42 = 1,820.67/x
  3. Step 3: Cross multiply
    5,518.12x = 8,277.42 × 1,820.67
  4. Step 4: Simplify right side
    5,518.12x = 15,070,408.88
  5. Step 5: Solve for x
    x = 15,070,408.88/5,518.12
  6. Step 6: Final answer
    x = 2,731.08

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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.