Home / 5,979.88-8,971.84-2,647.67

Finding the Fourth Proportional to 5,979.88, 8,971.84 and 2,647.67

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Solution

The fourth proportional to 5,979.88, 8,971.84 and 2,647.67 is: 3,972.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,979.88 : 8,971.84 = 2,647.67 : x
  2. Step 2: Convert to fraction form
    5,979.88/8,971.84 = 2,647.67/x
  3. Step 3: Cross multiply
    5,979.88x = 8,971.84 × 2,647.67
  4. Step 4: Simplify right side
    5,979.88x = 23,754,464.79
  5. Step 5: Solve for x
    x = 23,754,464.79/5,979.88
  6. Step 6: Final answer
    x = 3,972.40

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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.