Home / 2,767.44-3,807.61-2,100.40

Finding the Fourth Proportional to 2,767.44, 3,807.61 and 2,100.40

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Solution

The fourth proportional to 2,767.44, 3,807.61 and 2,100.40 is: 2,889.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.44 : 3,807.61 = 2,100.40 : x
  2. Step 2: Convert to fraction form
    2,767.44/3,807.61 = 2,100.40/x
  3. Step 3: Cross multiply
    2,767.44x = 3,807.61 × 2,100.40
  4. Step 4: Simplify right side
    2,767.44x = 7,997,504.04
  5. Step 5: Solve for x
    x = 7,997,504.04/2,767.44
  6. Step 6: Final answer
    x = 2,889.86

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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.