Home / 3,679.58-5,075.46-2,186.39

Finding the Fourth Proportional to 3,679.58, 5,075.46 and 2,186.39

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Solution

The fourth proportional to 3,679.58, 5,075.46 and 2,186.39 is: 3,015.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.58 : 5,075.46 = 2,186.39 : x
  2. Step 2: Convert to fraction form
    3,679.58/5,075.46 = 2,186.39/x
  3. Step 3: Cross multiply
    3,679.58x = 5,075.46 × 2,186.39
  4. Step 4: Simplify right side
    3,679.58x = 11,096,947.68
  5. Step 5: Solve for x
    x = 11,096,947.68/3,679.58
  6. Step 6: Final answer
    x = 3,015.82

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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.