Home / 3,106.28-4,260.40-2,756.36

Finding the Fourth Proportional to 3,106.28, 4,260.40 and 2,756.36

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Solution

The fourth proportional to 3,106.28, 4,260.40 and 2,756.36 is: 3,780.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.28 : 4,260.40 = 2,756.36 : x
  2. Step 2: Convert to fraction form
    3,106.28/4,260.40 = 2,756.36/x
  3. Step 3: Cross multiply
    3,106.28x = 4,260.40 × 2,756.36
  4. Step 4: Simplify right side
    3,106.28x = 11,743,196.14
  5. Step 5: Solve for x
    x = 11,743,196.14/3,106.28
  6. Step 6: Final answer
    x = 3,780.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.