Home / 7,448.36-11,173.98-2,831

Finding the Fourth Proportional to 7,448.36, 11,173.98 and 2,831

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Solution

The fourth proportional to 7,448.36, 11,173.98 and 2,831 is: 4,247.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,448.36 : 11,173.98 = 2,831 : x
  2. Step 2: Convert to fraction form
    7,448.36/11,173.98 = 2,831/x
  3. Step 3: Cross multiply
    7,448.36x = 11,173.98 × 2,831
  4. Step 4: Simplify right side
    7,448.36x = 31,633,537.38
  5. Step 5: Solve for x
    x = 31,633,537.38/7,448.36
  6. Step 6: Final answer
    x = 4,247.05

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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.