Home / 2,889.12-3,987.04-1,694.96

Finding the Fourth Proportional to 2,889.12, 3,987.04 and 1,694.96

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Solution

The fourth proportional to 2,889.12, 3,987.04 and 1,694.96 is: 2,339.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.12 : 3,987.04 = 1,694.96 : x
  2. Step 2: Convert to fraction form
    2,889.12/3,987.04 = 1,694.96/x
  3. Step 3: Cross multiply
    2,889.12x = 3,987.04 × 1,694.96
  4. Step 4: Simplify right side
    2,889.12x = 6,757,879.05
  5. Step 5: Solve for x
    x = 6,757,879.05/2,889.12
  6. Step 6: Final answer
    x = 2,339.08

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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.