Home / 2,884.01-3,979.40-1,704.78

Finding the Fourth Proportional to 2,884.01, 3,979.40 and 1,704.78

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Solution

The fourth proportional to 2,884.01, 3,979.40 and 1,704.78 is: 2,352.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,884.01 : 3,979.40 = 1,704.78 : x
  2. Step 2: Convert to fraction form
    2,884.01/3,979.40 = 1,704.78/x
  3. Step 3: Cross multiply
    2,884.01x = 3,979.40 × 1,704.78
  4. Step 4: Simplify right side
    2,884.01x = 6,783,993.01
  5. Step 5: Solve for x
    x = 6,783,993.01/2,884.01
  6. Step 6: Final answer
    x = 2,352.28

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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.