Home / 7,118.35-9,823.47-3,974.54

Finding the Fourth Proportional to 7,118.35, 9,823.47 and 3,974.54

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Solution

The fourth proportional to 7,118.35, 9,823.47 and 3,974.54 is: 5,484.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118.35 : 9,823.47 = 3,974.54 : x
  2. Step 2: Convert to fraction form
    7,118.35/9,823.47 = 3,974.54/x
  3. Step 3: Cross multiply
    7,118.35x = 9,823.47 × 3,974.54
  4. Step 4: Simplify right side
    7,118.35x = 39,043,725.34
  5. Step 5: Solve for x
    x = 39,043,725.34/7,118.35
  6. Step 6: Final answer
    x = 5,484.94

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