Home / 5,394.20-7,447.75-3,378.41

Finding the Fourth Proportional to 5,394.20, 7,447.75 and 3,378.41

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Solution

The fourth proportional to 5,394.20, 7,447.75 and 3,378.41 is: 4,664.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,394.20 : 7,447.75 = 3,378.41 : x
  2. Step 2: Convert to fraction form
    5,394.20/7,447.75 = 3,378.41/x
  3. Step 3: Cross multiply
    5,394.20x = 7,447.75 × 3,378.41
  4. Step 4: Simplify right side
    5,394.20x = 25,161,535.32
  5. Step 5: Solve for x
    x = 25,161,535.32/5,394.20
  6. Step 6: Final answer
    x = 4,664.56

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1.5x scale

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.