Home / 3,108.72-4,662.65-1,259.84

Finding the Fourth Proportional to 3,108.72, 4,662.65 and 1,259.84

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Solution

The fourth proportional to 3,108.72, 4,662.65 and 1,259.84 is: 1,889.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.72 : 4,662.65 = 1,259.84 : x
  2. Step 2: Convert to fraction form
    3,108.72/4,662.65 = 1,259.84/x
  3. Step 3: Cross multiply
    3,108.72x = 4,662.65 × 1,259.84
  4. Step 4: Simplify right side
    3,108.72x = 5,874,179.84
  5. Step 5: Solve for x
    x = 5,874,179.84/3,108.72
  6. Step 6: Final answer
    x = 1,889.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.