Home / 3,811.10-5,259.78-2,319.17

Finding the Fourth Proportional to 3,811.10, 5,259.78 and 2,319.17

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Solution

The fourth proportional to 3,811.10, 5,259.78 and 2,319.17 is: 3,200.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.10 : 5,259.78 = 2,319.17 : x
  2. Step 2: Convert to fraction form
    3,811.10/5,259.78 = 2,319.17/x
  3. Step 3: Cross multiply
    3,811.10x = 5,259.78 × 2,319.17
  4. Step 4: Simplify right side
    3,811.10x = 12,198,297.68
  5. Step 5: Solve for x
    x = 12,198,297.68/3,811.10
  6. Step 6: Final answer
    x = 3,200.73

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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.