Home / 3,851.26-5,779.31-1,386.03

Finding the Fourth Proportional to 3,851.26, 5,779.31 and 1,386.03

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Solution

The fourth proportional to 3,851.26, 5,779.31 and 1,386.03 is: 2,079.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.26 : 5,779.31 = 1,386.03 : x
  2. Step 2: Convert to fraction form
    3,851.26/5,779.31 = 1,386.03/x
  3. Step 3: Cross multiply
    3,851.26x = 5,779.31 × 1,386.03
  4. Step 4: Simplify right side
    3,851.26x = 8,010,297.04
  5. Step 5: Solve for x
    x = 8,010,297.04/3,851.26
  6. Step 6: Final answer
    x = 2,079.92

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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.