Home / 2,841.28-3,919.86-2,094.96

Finding the Fourth Proportional to 2,841.28, 3,919.86 and 2,094.96

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Solution

The fourth proportional to 2,841.28, 3,919.86 and 2,094.96 is: 2,890.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.28 : 3,919.86 = 2,094.96 : x
  2. Step 2: Convert to fraction form
    2,841.28/3,919.86 = 2,094.96/x
  3. Step 3: Cross multiply
    2,841.28x = 3,919.86 × 2,094.96
  4. Step 4: Simplify right side
    2,841.28x = 8,211,955.77
  5. Step 5: Solve for x
    x = 8,211,955.77/2,841.28
  6. Step 6: Final answer
    x = 2,890.23

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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.