Home / 3,690.86-5,091.03-2,197.67

Finding the Fourth Proportional to 3,690.86, 5,091.03 and 2,197.67

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Solution

The fourth proportional to 3,690.86, 5,091.03 and 2,197.67 is: 3,031.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.86 : 5,091.03 = 2,197.67 : x
  2. Step 2: Convert to fraction form
    3,690.86/5,091.03 = 2,197.67/x
  3. Step 3: Cross multiply
    3,690.86x = 5,091.03 × 2,197.67
  4. Step 4: Simplify right side
    3,690.86x = 11,188,403.90
  5. Step 5: Solve for x
    x = 11,188,403.90/3,690.86
  6. Step 6: Final answer
    x = 3,031.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.