Home / 3,650.45-5,040.03-2,809.67

Finding the Fourth Proportional to 3,650.45, 5,040.03 and 2,809.67

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Solution

The fourth proportional to 3,650.45, 5,040.03 and 2,809.67 is: 3,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,650.45 : 5,040.03 = 2,809.67 : x
  2. Step 2: Convert to fraction form
    3,650.45/5,040.03 = 2,809.67/x
  3. Step 3: Cross multiply
    3,650.45x = 5,040.03 × 2,809.67
  4. Step 4: Simplify right side
    3,650.45x = 14,160,821.09
  5. Step 5: Solve for x
    x = 14,160,821.09/3,650.45
  6. Step 6: Final answer
    x = 3,879.20

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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.