Home / 4,749.56-7,120.44-3,085.40

Finding the Fourth Proportional to 4,749.56, 7,120.44 and 3,085.40

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Solution

The fourth proportional to 4,749.56, 7,120.44 and 3,085.40 is: 4,625.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,749.56 : 7,120.44 = 3,085.40 : x
  2. Step 2: Convert to fraction form
    4,749.56/7,120.44 = 3,085.40/x
  3. Step 3: Cross multiply
    4,749.56x = 7,120.44 × 3,085.40
  4. Step 4: Simplify right side
    4,749.56x = 21,969,405.58
  5. Step 5: Solve for x
    x = 21,969,405.58/4,749.56
  6. Step 6: Final answer
    x = 4,625.57

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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.