Home / 7,178.35-10,765.75-2,497.67

Finding the Fourth Proportional to 7,178.35, 10,765.75 and 2,497.67

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Solution

The fourth proportional to 7,178.35, 10,765.75 and 2,497.67 is: 3,745.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.35 : 10,765.75 = 2,497.67 : x
  2. Step 2: Convert to fraction form
    7,178.35/10,765.75 = 2,497.67/x
  3. Step 3: Cross multiply
    7,178.35x = 10,765.75 × 2,497.67
  4. Step 4: Simplify right side
    7,178.35x = 26,889,290.80
  5. Step 5: Solve for x
    x = 26,889,290.80/7,178.35
  6. Step 6: Final answer
    x = 3,745.89

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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.