Home / 7,481.36-11,215.16-2,798.99

Finding the Fourth Proportional to 7,481.36, 11,215.16 and 2,798.99

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Solution

The fourth proportional to 7,481.36, 11,215.16 and 2,798.99 is: 4,195.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.36 : 11,215.16 = 2,798.99 : x
  2. Step 2: Convert to fraction form
    7,481.36/11,215.16 = 2,798.99/x
  3. Step 3: Cross multiply
    7,481.36x = 11,215.16 × 2,798.99
  4. Step 4: Simplify right side
    7,481.36x = 31,391,103.17
  5. Step 5: Solve for x
    x = 31,391,103.17/7,481.36
  6. Step 6: Final answer
    x = 4,195.91

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1.5x scale

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.