Home / 2,186.82-3,280.23-1,090.08

Finding the Fourth Proportional to 2,186.82, 3,280.23 and 1,090.08

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Solution

The fourth proportional to 2,186.82, 3,280.23 and 1,090.08 is: 1,635.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.82 : 3,280.23 = 1,090.08 : x
  2. Step 2: Convert to fraction form
    2,186.82/3,280.23 = 1,090.08/x
  3. Step 3: Cross multiply
    2,186.82x = 3,280.23 × 1,090.08
  4. Step 4: Simplify right side
    2,186.82x = 3,575,713.12
  5. Step 5: Solve for x
    x = 3,575,713.12/2,186.82
  6. Step 6: Final answer
    x = 1,635.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.