Home / 3,119.55-4,305.24-1,924.80

Finding the Fourth Proportional to 3,119.55, 4,305.24 and 1,924.80

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Solution

The fourth proportional to 3,119.55, 4,305.24 and 1,924.80 is: 2,656.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.55 : 4,305.24 = 1,924.80 : x
  2. Step 2: Convert to fraction form
    3,119.55/4,305.24 = 1,924.80/x
  3. Step 3: Cross multiply
    3,119.55x = 4,305.24 × 1,924.80
  4. Step 4: Simplify right side
    3,119.55x = 8,286,725.95
  5. Step 5: Solve for x
    x = 8,286,725.95/3,119.55
  6. Step 6: Final answer
    x = 2,656.39

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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.