Home / 3,678.26-5,075.74-2,186.30

Finding the Fourth Proportional to 3,678.26, 5,075.74 and 2,186.30

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Solution

The fourth proportional to 3,678.26, 5,075.74 and 2,186.30 is: 3,016.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.26 : 5,075.74 = 2,186.30 : x
  2. Step 2: Convert to fraction form
    3,678.26/5,075.74 = 2,186.30/x
  3. Step 3: Cross multiply
    3,678.26x = 5,075.74 × 2,186.30
  4. Step 4: Simplify right side
    3,678.26x = 11,097,090.36
  5. Step 5: Solve for x
    x = 11,097,090.36/3,678.26
  6. Step 6: Final answer
    x = 3,016.94

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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.