Home / 7,134.36-9,845.33-3,947.42

Finding the Fourth Proportional to 7,134.36, 9,845.33 and 3,947.42

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Solution

The fourth proportional to 7,134.36, 9,845.33 and 3,947.42 is: 5,447.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,134.36 : 9,845.33 = 3,947.42 : x
  2. Step 2: Convert to fraction form
    7,134.36/9,845.33 = 3,947.42/x
  3. Step 3: Cross multiply
    7,134.36x = 9,845.33 × 3,947.42
  4. Step 4: Simplify right side
    7,134.36x = 38,863,624.25
  5. Step 5: Solve for x
    x = 38,863,624.25/7,134.36
  6. Step 6: Final answer
    x = 5,447.39

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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.