Home / 3,122.97-4,308.35-1,880.25

Finding the Fourth Proportional to 3,122.97, 4,308.35 and 1,880.25

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Solution

The fourth proportional to 3,122.97, 4,308.35 and 1,880.25 is: 2,593.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.97 : 4,308.35 = 1,880.25 : x
  2. Step 2: Convert to fraction form
    3,122.97/4,308.35 = 1,880.25/x
  3. Step 3: Cross multiply
    3,122.97x = 4,308.35 × 1,880.25
  4. Step 4: Simplify right side
    3,122.97x = 8,100,765.69
  5. Step 5: Solve for x
    x = 8,100,765.69/3,122.97
  6. Step 6: Final answer
    x = 2,593.93

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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.