Home / 2,655.09-3,979.60-1,266.48

Finding the Fourth Proportional to 2,655.09, 3,979.60 and 1,266.48

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Solution

The fourth proportional to 2,655.09, 3,979.60 and 1,266.48 is: 1,898.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.09 : 3,979.60 = 1,266.48 : x
  2. Step 2: Convert to fraction form
    2,655.09/3,979.60 = 1,266.48/x
  3. Step 3: Cross multiply
    2,655.09x = 3,979.60 × 1,266.48
  4. Step 4: Simplify right side
    2,655.09x = 5,040,080.64
  5. Step 5: Solve for x
    x = 5,040,080.64/2,655.09
  6. Step 6: Final answer
    x = 1,898.27

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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.