Home / 2,675.36-4,012.68-826.44

Finding the Fourth Proportional to 2,675.36, 4,012.68 and 826.44

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Solution

The fourth proportional to 2,675.36, 4,012.68 and 826.44 is: 1,239.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.36 : 4,012.68 = 826.44 : x
  2. Step 2: Convert to fraction form
    2,675.36/4,012.68 = 826.44/x
  3. Step 3: Cross multiply
    2,675.36x = 4,012.68 × 826.44
  4. Step 4: Simplify right side
    2,675.36x = 3,316,239.26
  5. Step 5: Solve for x
    x = 3,316,239.26/2,675.36
  6. Step 6: Final answer
    x = 1,239.55

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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.