Home / 3,811.69-5,260.09-2,133.10

Finding the Fourth Proportional to 3,811.69, 5,260.09 and 2,133.10

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Solution

The fourth proportional to 3,811.69, 5,260.09 and 2,133.10 is: 2,943.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.69 : 5,260.09 = 2,133.10 : x
  2. Step 2: Convert to fraction form
    3,811.69/5,260.09 = 2,133.10/x
  3. Step 3: Cross multiply
    3,811.69x = 5,260.09 × 2,133.10
  4. Step 4: Simplify right side
    3,811.69x = 11,220,297.98
  5. Step 5: Solve for x
    x = 11,220,297.98/3,811.69
  6. Step 6: Final answer
    x = 2,943.65

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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.