Home / 3,851.09-5,764.31-1,999.67

Finding the Fourth Proportional to 3,851.09, 5,764.31 and 1,999.67

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Solution

The fourth proportional to 3,851.09, 5,764.31 and 1,999.67 is: 2,993.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.09 : 5,764.31 = 1,999.67 : x
  2. Step 2: Convert to fraction form
    3,851.09/5,764.31 = 1,999.67/x
  3. Step 3: Cross multiply
    3,851.09x = 5,764.31 × 1,999.67
  4. Step 4: Simplify right side
    3,851.09x = 11,526,686.46
  5. Step 5: Solve for x
    x = 11,526,686.46/3,851.09
  6. Step 6: Final answer
    x = 2,993.10

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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.