Home / 6,679.04-10,021.12-2,782.40

Finding the Fourth Proportional to 6,679.04, 10,021.12 and 2,782.40

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Solution

The fourth proportional to 6,679.04, 10,021.12 and 2,782.40 is: 4,174.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.04 : 10,021.12 = 2,782.40 : x
  2. Step 2: Convert to fraction form
    6,679.04/10,021.12 = 2,782.40/x
  3. Step 3: Cross multiply
    6,679.04x = 10,021.12 × 2,782.40
  4. Step 4: Simplify right side
    6,679.04x = 27,882,764.29
  5. Step 5: Solve for x
    x = 27,882,764.29/6,679.04
  6. Step 6: Final answer
    x = 4,174.67

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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.