Home / 7,889.12-11,832.76-2,045.28

Finding the Fourth Proportional to 7,889.12, 11,832.76 and 2,045.28

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Solution

The fourth proportional to 7,889.12, 11,832.76 and 2,045.28 is: 3,067.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.12 : 11,832.76 = 2,045.28 : x
  2. Step 2: Convert to fraction form
    7,889.12/11,832.76 = 2,045.28/x
  3. Step 3: Cross multiply
    7,889.12x = 11,832.76 × 2,045.28
  4. Step 4: Simplify right side
    7,889.12x = 24,201,307.37
  5. Step 5: Solve for x
    x = 24,201,307.37/7,889.12
  6. Step 6: Final answer
    x = 3,067.68

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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.