Home / 3,191.85-4,401.05-2,923.97

Finding the Fourth Proportional to 3,191.85, 4,401.05 and 2,923.97

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Solution

The fourth proportional to 3,191.85, 4,401.05 and 2,923.97 is: 4,031.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.85 : 4,401.05 = 2,923.97 : x
  2. Step 2: Convert to fraction form
    3,191.85/4,401.05 = 2,923.97/x
  3. Step 3: Cross multiply
    3,191.85x = 4,401.05 × 2,923.97
  4. Step 4: Simplify right side
    3,191.85x = 12,868,501.54
  5. Step 5: Solve for x
    x = 12,868,501.54/3,191.85
  6. Step 6: Final answer
    x = 4,031.67

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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.