Home / 2,679.23-4,016.41-1,985.06

Finding the Fourth Proportional to 2,679.23, 4,016.41 and 1,985.06

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Solution

The fourth proportional to 2,679.23, 4,016.41 and 1,985.06 is: 2,975.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.23 : 4,016.41 = 1,985.06 : x
  2. Step 2: Convert to fraction form
    2,679.23/4,016.41 = 1,985.06/x
  3. Step 3: Cross multiply
    2,679.23x = 4,016.41 × 1,985.06
  4. Step 4: Simplify right side
    2,679.23x = 7,972,814.83
  5. Step 5: Solve for x
    x = 7,972,814.83/2,679.23
  6. Step 6: Final answer
    x = 2,975.79

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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.