Home / 5,400.63-7,455.36-3,808.57

Finding the Fourth Proportional to 5,400.63, 7,455.36 and 3,808.57

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Solution

The fourth proportional to 5,400.63, 7,455.36 and 3,808.57 is: 5,257.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,400.63 : 7,455.36 = 3,808.57 : x
  2. Step 2: Convert to fraction form
    5,400.63/7,455.36 = 3,808.57/x
  3. Step 3: Cross multiply
    5,400.63x = 7,455.36 × 3,808.57
  4. Step 4: Simplify right side
    5,400.63x = 28,394,260.44
  5. Step 5: Solve for x
    x = 28,394,260.44/5,400.63
  6. Step 6: Final answer
    x = 5,257.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.