Home / 7,450.77-11,181.32-2,775.05

Finding the Fourth Proportional to 7,450.77, 11,181.32 and 2,775.05

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Solution

The fourth proportional to 7,450.77, 11,181.32 and 2,775.05 is: 4,164.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,450.77 : 11,181.32 = 2,775.05 : x
  2. Step 2: Convert to fraction form
    7,450.77/11,181.32 = 2,775.05/x
  3. Step 3: Cross multiply
    7,450.77x = 11,181.32 × 2,775.05
  4. Step 4: Simplify right side
    7,450.77x = 31,028,722.07
  5. Step 5: Solve for x
    x = 31,028,722.07/7,450.77
  6. Step 6: Final answer
    x = 4,164.50

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Half scale
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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.