Home / 3,842.40-5,764.48-1,245.32

Finding the Fourth Proportional to 3,842.40, 5,764.48 and 1,245.32

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Solution

The fourth proportional to 3,842.40, 5,764.48 and 1,245.32 is: 1,868.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,842.40 : 5,764.48 = 1,245.32 : x
  2. Step 2: Convert to fraction form
    3,842.40/5,764.48 = 1,245.32/x
  3. Step 3: Cross multiply
    3,842.40x = 5,764.48 × 1,245.32
  4. Step 4: Simplify right side
    3,842.40x = 7,178,622.23
  5. Step 5: Solve for x
    x = 7,178,622.23/3,842.40
  6. Step 6: Final answer
    x = 1,868.27

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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.