Home / 2,889.37-3,986.34-1,630.27

Finding the Fourth Proportional to 2,889.37, 3,986.34 and 1,630.27

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Solution

The fourth proportional to 2,889.37, 3,986.34 and 1,630.27 is: 2,249.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.37 : 3,986.34 = 1,630.27 : x
  2. Step 2: Convert to fraction form
    2,889.37/3,986.34 = 1,630.27/x
  3. Step 3: Cross multiply
    2,889.37x = 3,986.34 × 1,630.27
  4. Step 4: Simplify right side
    2,889.37x = 6,498,810.51
  5. Step 5: Solve for x
    x = 6,498,810.51/2,889.37
  6. Step 6: Final answer
    x = 2,249.21

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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.