Home / 7,947.16-11,919.30-2,681.44

Finding the Fourth Proportional to 7,947.16, 11,919.30 and 2,681.44

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Solution

The fourth proportional to 7,947.16, 11,919.30 and 2,681.44 is: 4,021.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.16 : 11,919.30 = 2,681.44 : x
  2. Step 2: Convert to fraction form
    7,947.16/11,919.30 = 2,681.44/x
  3. Step 3: Cross multiply
    7,947.16x = 11,919.30 × 2,681.44
  4. Step 4: Simplify right side
    7,947.16x = 31,960,887.79
  5. Step 5: Solve for x
    x = 31,960,887.79/7,947.16
  6. Step 6: Final answer
    x = 4,021.67

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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.