Home / 3,859.99-5,777.35-2,100.60

Finding the Fourth Proportional to 3,859.99, 5,777.35 and 2,100.60

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Solution

The fourth proportional to 3,859.99, 5,777.35 and 2,100.60 is: 3,144.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.99 : 5,777.35 = 2,100.60 : x
  2. Step 2: Convert to fraction form
    3,859.99/5,777.35 = 2,100.60/x
  3. Step 3: Cross multiply
    3,859.99x = 5,777.35 × 2,100.60
  4. Step 4: Simplify right side
    3,859.99x = 12,135,901.41
  5. Step 5: Solve for x
    x = 12,135,901.41/3,859.99
  6. Step 6: Final answer
    x = 3,144.02

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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.