Home / 3,920.82-5,880.45-1,840.29

Finding the Fourth Proportional to 3,920.82, 5,880.45 and 1,840.29

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Solution

The fourth proportional to 3,920.82, 5,880.45 and 1,840.29 is: 2,760.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,920.82 : 5,880.45 = 1,840.29 : x
  2. Step 2: Convert to fraction form
    3,920.82/5,880.45 = 1,840.29/x
  3. Step 3: Cross multiply
    3,920.82x = 5,880.45 × 1,840.29
  4. Step 4: Simplify right side
    3,920.82x = 10,821,733.33
  5. Step 5: Solve for x
    x = 10,821,733.33/3,920.82
  6. Step 6: Final answer
    x = 2,760.07

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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.