Home / 3,102.68-4,279.56-2,969.84

Finding the Fourth Proportional to 3,102.68, 4,279.56 and 2,969.84

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Solution

The fourth proportional to 3,102.68, 4,279.56 and 2,969.84 is: 4,096.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.68 : 4,279.56 = 2,969.84 : x
  2. Step 2: Convert to fraction form
    3,102.68/4,279.56 = 2,969.84/x
  3. Step 3: Cross multiply
    3,102.68x = 4,279.56 × 2,969.84
  4. Step 4: Simplify right side
    3,102.68x = 12,709,608.47
  5. Step 5: Solve for x
    x = 12,709,608.47/3,102.68
  6. Step 6: Final answer
    x = 4,096.33

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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.