Home / 2,556.80-3,837.60-1,325.06

Finding the Fourth Proportional to 2,556.80, 3,837.60 and 1,325.06

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Solution

The fourth proportional to 2,556.80, 3,837.60 and 1,325.06 is: 1,988.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,556.80 : 3,837.60 = 1,325.06 : x
  2. Step 2: Convert to fraction form
    2,556.80/3,837.60 = 1,325.06/x
  3. Step 3: Cross multiply
    2,556.80x = 3,837.60 × 1,325.06
  4. Step 4: Simplify right side
    2,556.80x = 5,085,050.26
  5. Step 5: Solve for x
    x = 5,085,050.26/2,556.80
  6. Step 6: Final answer
    x = 1,988.83

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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.