Home / 4,755.44-7,129.38-2,155.34

Finding the Fourth Proportional to 4,755.44, 7,129.38 and 2,155.34

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Solution

The fourth proportional to 4,755.44, 7,129.38 and 2,155.34 is: 3,231.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,755.44 : 7,129.38 = 2,155.34 : x
  2. Step 2: Convert to fraction form
    4,755.44/7,129.38 = 2,155.34/x
  3. Step 3: Cross multiply
    4,755.44x = 7,129.38 × 2,155.34
  4. Step 4: Simplify right side
    4,755.44x = 15,366,237.89
  5. Step 5: Solve for x
    x = 15,366,237.89/4,755.44
  6. Step 6: Final answer
    x = 3,231.30

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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.