Home / 1,704.40-2,556.60-1,431.04

Finding the Fourth Proportional to 1,704.40, 2,556.60 and 1,431.04

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Solution

The fourth proportional to 1,704.40, 2,556.60 and 1,431.04 is: 2,146.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,704.40 : 2,556.60 = 1,431.04 : x
  2. Step 2: Convert to fraction form
    1,704.40/2,556.60 = 1,431.04/x
  3. Step 3: Cross multiply
    1,704.40x = 2,556.60 × 1,431.04
  4. Step 4: Simplify right side
    1,704.40x = 3,658,596.86
  5. Step 5: Solve for x
    x = 3,658,596.86/1,704.40
  6. Step 6: Final answer
    x = 2,146.56

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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.