Home / 3,679.68-5,075.72-2,186.56

Finding the Fourth Proportional to 3,679.68, 5,075.72 and 2,186.56

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Solution

The fourth proportional to 3,679.68, 5,075.72 and 2,186.56 is: 3,016.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.68 : 5,075.72 = 2,186.56 : x
  2. Step 2: Convert to fraction form
    3,679.68/5,075.72 = 2,186.56/x
  3. Step 3: Cross multiply
    3,679.68x = 5,075.72 × 2,186.56
  4. Step 4: Simplify right side
    3,679.68x = 11,098,366.32
  5. Step 5: Solve for x
    x = 11,098,366.32/3,679.68
  6. Step 6: Final answer
    x = 3,016.12

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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.