Home / 2,526.40-3,791.40-1,429.60

Finding the Fourth Proportional to 2,526.40, 3,791.40 and 1,429.60

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Solution

The fourth proportional to 2,526.40, 3,791.40 and 1,429.60 is: 2,145.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,526.40 : 3,791.40 = 1,429.60 : x
  2. Step 2: Convert to fraction form
    2,526.40/3,791.40 = 1,429.60/x
  3. Step 3: Cross multiply
    2,526.40x = 3,791.40 × 1,429.60
  4. Step 4: Simplify right side
    2,526.40x = 5,420,185.44
  5. Step 5: Solve for x
    x = 5,420,185.44/2,526.40
  6. Step 6: Final answer
    x = 2,145.42

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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.