Home / 3,670.80-5,507.01-2,111.55

Finding the Fourth Proportional to 3,670.80, 5,507.01 and 2,111.55

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Solution

The fourth proportional to 3,670.80, 5,507.01 and 2,111.55 is: 3,167.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.80 : 5,507.01 = 2,111.55 : x
  2. Step 2: Convert to fraction form
    3,670.80/5,507.01 = 2,111.55/x
  3. Step 3: Cross multiply
    3,670.80x = 5,507.01 × 2,111.55
  4. Step 4: Simplify right side
    3,670.80x = 11,628,326.97
  5. Step 5: Solve for x
    x = 11,628,326.97/3,670.80
  6. Step 6: Final answer
    x = 3,167.79

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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.