Home / 2,678.34-4,016.25-1,739.76

Finding the Fourth Proportional to 2,678.34, 4,016.25 and 1,739.76

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Solution

The fourth proportional to 2,678.34, 4,016.25 and 1,739.76 is: 2,608.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.34 : 4,016.25 = 1,739.76 : x
  2. Step 2: Convert to fraction form
    2,678.34/4,016.25 = 1,739.76/x
  3. Step 3: Cross multiply
    2,678.34x = 4,016.25 × 1,739.76
  4. Step 4: Simplify right side
    2,678.34x = 6,987,311.10
  5. Step 5: Solve for x
    x = 6,987,311.10/2,678.34
  6. Step 6: Final answer
    x = 2,608.82

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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.