Home / 2,829.06-4,240.77-979.26

Finding the Fourth Proportional to 2,829.06, 4,240.77 and 979.26

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Solution

The fourth proportional to 2,829.06, 4,240.77 and 979.26 is: 1,467.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.06 : 4,240.77 = 979.26 : x
  2. Step 2: Convert to fraction form
    2,829.06/4,240.77 = 979.26/x
  3. Step 3: Cross multiply
    2,829.06x = 4,240.77 × 979.26
  4. Step 4: Simplify right side
    2,829.06x = 4,152,816.43
  5. Step 5: Solve for x
    x = 4,152,816.43/2,829.06
  6. Step 6: Final answer
    x = 1,467.91

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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.