Home / 5,081.94-7,619.40-1,749.30

Finding the Fourth Proportional to 5,081.94, 7,619.40 and 1,749.30

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Solution

The fourth proportional to 5,081.94, 7,619.40 and 1,749.30 is: 2,622.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.94 : 7,619.40 = 1,749.30 : x
  2. Step 2: Convert to fraction form
    5,081.94/7,619.40 = 1,749.30/x
  3. Step 3: Cross multiply
    5,081.94x = 7,619.40 × 1,749.30
  4. Step 4: Simplify right side
    5,081.94x = 13,328,616.42
  5. Step 5: Solve for x
    x = 13,328,616.42/5,081.94
  6. Step 6: Final answer
    x = 2,622.74

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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.