Home / 3,499.18-5,249.67-2,121.37

Finding the Fourth Proportional to 3,499.18, 5,249.67 and 2,121.37

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Solution

The fourth proportional to 3,499.18, 5,249.67 and 2,121.37 is: 3,182.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,499.18 : 5,249.67 = 2,121.37 : x
  2. Step 2: Convert to fraction form
    3,499.18/5,249.67 = 2,121.37/x
  3. Step 3: Cross multiply
    3,499.18x = 5,249.67 × 2,121.37
  4. Step 4: Simplify right side
    3,499.18x = 11,136,492.45
  5. Step 5: Solve for x
    x = 11,136,492.45/3,499.18
  6. Step 6: Final answer
    x = 3,182.60

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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.