Home / 3,829.79-5,279.09-2,708.34

Finding the Fourth Proportional to 3,829.79, 5,279.09 and 2,708.34

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Solution

The fourth proportional to 3,829.79, 5,279.09 and 2,708.34 is: 3,733.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,829.79 : 5,279.09 = 2,708.34 : x
  2. Step 2: Convert to fraction form
    3,829.79/5,279.09 = 2,708.34/x
  3. Step 3: Cross multiply
    3,829.79x = 5,279.09 × 2,708.34
  4. Step 4: Simplify right side
    3,829.79x = 14,297,557.07
  5. Step 5: Solve for x
    x = 14,297,557.07/3,829.79
  6. Step 6: Final answer
    x = 3,733.25

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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.