Home / 3,102.26-4,279.77-1,775.66

Finding the Fourth Proportional to 3,102.26, 4,279.77 and 1,775.66

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Solution

The fourth proportional to 3,102.26, 4,279.77 and 1,775.66 is: 2,449.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.26 : 4,279.77 = 1,775.66 : x
  2. Step 2: Convert to fraction form
    3,102.26/4,279.77 = 1,775.66/x
  3. Step 3: Cross multiply
    3,102.26x = 4,279.77 × 1,775.66
  4. Step 4: Simplify right side
    3,102.26x = 7,599,416.40
  5. Step 5: Solve for x
    x = 7,599,416.40/3,102.26
  6. Step 6: Final answer
    x = 2,449.64

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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.