Home / 3,825.68-5,273.36-2,880.08

Finding the Fourth Proportional to 3,825.68, 5,273.36 and 2,880.08

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Solution

The fourth proportional to 3,825.68, 5,273.36 and 2,880.08 is: 3,969.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.68 : 5,273.36 = 2,880.08 : x
  2. Step 2: Convert to fraction form
    3,825.68/5,273.36 = 2,880.08/x
  3. Step 3: Cross multiply
    3,825.68x = 5,273.36 × 2,880.08
  4. Step 4: Simplify right side
    3,825.68x = 15,187,698.67
  5. Step 5: Solve for x
    x = 15,187,698.67/3,825.68
  6. Step 6: Final answer
    x = 3,969.93

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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.