Home / 8,749.29-13,129.38-3,819

Finding the Fourth Proportional to 8,749.29, 13,129.38 and 3,819

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Solution

The fourth proportional to 8,749.29, 13,129.38 and 3,819 is: 5,730.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.29 : 13,129.38 = 3,819 : x
  2. Step 2: Convert to fraction form
    8,749.29/13,129.38 = 3,819/x
  3. Step 3: Cross multiply
    8,749.29x = 13,129.38 × 3,819
  4. Step 4: Simplify right side
    8,749.29x = 50,141,102.22
  5. Step 5: Solve for x
    x = 50,141,102.22/8,749.29
  6. Step 6: Final answer
    x = 5,730.88

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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.