Home / 2,576.94-3,556.26-1,398.06

Finding the Fourth Proportional to 2,576.94, 3,556.26 and 1,398.06

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Solution

The fourth proportional to 2,576.94, 3,556.26 and 1,398.06 is: 1,929.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.94 : 3,556.26 = 1,398.06 : x
  2. Step 2: Convert to fraction form
    2,576.94/3,556.26 = 1,398.06/x
  3. Step 3: Cross multiply
    2,576.94x = 3,556.26 × 1,398.06
  4. Step 4: Simplify right side
    2,576.94x = 4,971,864.86
  5. Step 5: Solve for x
    x = 4,971,864.86/2,576.94
  6. Step 6: Final answer
    x = 1,929.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.