Home / 4,728.55-7,090.80-1,954.30

Finding the Fourth Proportional to 4,728.55, 7,090.80 and 1,954.30

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Solution

The fourth proportional to 4,728.55, 7,090.80 and 1,954.30 is: 2,930.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,728.55 : 7,090.80 = 1,954.30 : x
  2. Step 2: Convert to fraction form
    4,728.55/7,090.80 = 1,954.30/x
  3. Step 3: Cross multiply
    4,728.55x = 7,090.80 × 1,954.30
  4. Step 4: Simplify right side
    4,728.55x = 13,857,550.44
  5. Step 5: Solve for x
    x = 13,857,550.44/4,728.55
  6. Step 6: Final answer
    x = 2,930.61

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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.