Home / 2,675.13-4,012.79-826.26

Finding the Fourth Proportional to 2,675.13, 4,012.79 and 826.26

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Solution

The fourth proportional to 2,675.13, 4,012.79 and 826.26 is: 1,239.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.13 : 4,012.79 = 826.26 : x
  2. Step 2: Convert to fraction form
    2,675.13/4,012.79 = 826.26/x
  3. Step 3: Cross multiply
    2,675.13x = 4,012.79 × 826.26
  4. Step 4: Simplify right side
    2,675.13x = 3,315,607.87
  5. Step 5: Solve for x
    x = 3,315,607.87/2,675.13
  6. Step 6: Final answer
    x = 1,239.42

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1.5x scale

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.