Home / 3,890.00-5,367.24-2,211

Finding the Fourth Proportional to 3,890.00, 5,367.24 and 2,211

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Solution

The fourth proportional to 3,890.00, 5,367.24 and 2,211 is: 3,050.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.00 : 5,367.24 = 2,211 : x
  2. Step 2: Convert to fraction form
    3,890.00/5,367.24 = 2,211/x
  3. Step 3: Cross multiply
    3,890.00x = 5,367.24 × 2,211
  4. Step 4: Simplify right side
    3,890.00x = 11,866,967.64
  5. Step 5: Solve for x
    x = 11,866,967.64/3,890.00
  6. Step 6: Final answer
    x = 3,050.64

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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.