Home / 3,109.88-4,292.04-1,783.33

Finding the Fourth Proportional to 3,109.88, 4,292.04 and 1,783.33

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Solution

The fourth proportional to 3,109.88, 4,292.04 and 1,783.33 is: 2,461.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.88 : 4,292.04 = 1,783.33 : x
  2. Step 2: Convert to fraction form
    3,109.88/4,292.04 = 1,783.33/x
  3. Step 3: Cross multiply
    3,109.88x = 4,292.04 × 1,783.33
  4. Step 4: Simplify right side
    3,109.88x = 7,654,102.23
  5. Step 5: Solve for x
    x = 7,654,102.23/3,109.88
  6. Step 6: Final answer
    x = 2,461.22

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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.