Home / 3,848.80-5,769.60-3,015.40

Finding the Fourth Proportional to 3,848.80, 5,769.60 and 3,015.40

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Solution

The fourth proportional to 3,848.80, 5,769.60 and 3,015.40 is: 4,520.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.80 : 5,769.60 = 3,015.40 : x
  2. Step 2: Convert to fraction form
    3,848.80/5,769.60 = 3,015.40/x
  3. Step 3: Cross multiply
    3,848.80x = 5,769.60 × 3,015.40
  4. Step 4: Simplify right side
    3,848.80x = 17,397,651.84
  5. Step 5: Solve for x
    x = 17,397,651.84/3,848.80
  6. Step 6: Final answer
    x = 4,520.28

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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.