Home / 3,980.88-5,492.61-2,408.67

Finding the Fourth Proportional to 3,980.88, 5,492.61 and 2,408.67

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Solution

The fourth proportional to 3,980.88, 5,492.61 and 2,408.67 is: 3,323.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.88 : 5,492.61 = 2,408.67 : x
  2. Step 2: Convert to fraction form
    3,980.88/5,492.61 = 2,408.67/x
  3. Step 3: Cross multiply
    3,980.88x = 5,492.61 × 2,408.67
  4. Step 4: Simplify right side
    3,980.88x = 13,229,884.93
  5. Step 5: Solve for x
    x = 13,229,884.93/3,980.88
  6. Step 6: Final answer
    x = 3,323.36

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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.