Home / 2,106.41-3,159.86-1,719.68

Finding the Fourth Proportional to 2,106.41, 3,159.86 and 1,719.68

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Solution

The fourth proportional to 2,106.41, 3,159.86 and 1,719.68 is: 2,579.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.41 : 3,159.86 = 1,719.68 : x
  2. Step 2: Convert to fraction form
    2,106.41/3,159.86 = 1,719.68/x
  3. Step 3: Cross multiply
    2,106.41x = 3,159.86 × 1,719.68
  4. Step 4: Simplify right side
    2,106.41x = 5,433,951.09
  5. Step 5: Solve for x
    x = 5,433,951.09/2,106.41
  6. Step 6: Final answer
    x = 2,579.73

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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.