Home / 7,390.96-11,085.40-3,286

Finding the Fourth Proportional to 7,390.96, 11,085.40 and 3,286

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Solution

The fourth proportional to 7,390.96, 11,085.40 and 3,286 is: 4,928.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.96 : 11,085.40 = 3,286 : x
  2. Step 2: Convert to fraction form
    7,390.96/11,085.40 = 3,286/x
  3. Step 3: Cross multiply
    7,390.96x = 11,085.40 × 3,286
  4. Step 4: Simplify right side
    7,390.96x = 36,426,624.40
  5. Step 5: Solve for x
    x = 36,426,624.40/7,390.96
  6. Step 6: Final answer
    x = 4,928.54

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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.