Home / 3,975.56-5,485.27-2,858.82

Finding the Fourth Proportional to 3,975.56, 5,485.27 and 2,858.82

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Solution

The fourth proportional to 3,975.56, 5,485.27 and 2,858.82 is: 3,944.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.56 : 5,485.27 = 2,858.82 : x
  2. Step 2: Convert to fraction form
    3,975.56/5,485.27 = 2,858.82/x
  3. Step 3: Cross multiply
    3,975.56x = 5,485.27 × 2,858.82
  4. Step 4: Simplify right side
    3,975.56x = 15,681,392.65
  5. Step 5: Solve for x
    x = 15,681,392.65/3,975.56
  6. Step 6: Final answer
    x = 3,944.45

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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.