Home / 3,107.68-4,661.25-1,259.80

Finding the Fourth Proportional to 3,107.68, 4,661.25 and 1,259.80

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Solution

The fourth proportional to 3,107.68, 4,661.25 and 1,259.80 is: 1,889.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.68 : 4,661.25 = 1,259.80 : x
  2. Step 2: Convert to fraction form
    3,107.68/4,661.25 = 1,259.80/x
  3. Step 3: Cross multiply
    3,107.68x = 4,661.25 × 1,259.80
  4. Step 4: Simplify right side
    3,107.68x = 5,872,242.75
  5. Step 5: Solve for x
    x = 5,872,242.75/3,107.68
  6. Step 6: Final answer
    x = 1,889.59

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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.