Home / 3,390.06-5,085.09-1,081.50

Finding the Fourth Proportional to 3,390.06, 5,085.09 and 1,081.50

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Solution

The fourth proportional to 3,390.06, 5,085.09 and 1,081.50 is: 1,622.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.06 : 5,085.09 = 1,081.50 : x
  2. Step 2: Convert to fraction form
    3,390.06/5,085.09 = 1,081.50/x
  3. Step 3: Cross multiply
    3,390.06x = 5,085.09 × 1,081.50
  4. Step 4: Simplify right side
    3,390.06x = 5,499,524.84
  5. Step 5: Solve for x
    x = 5,499,524.84/3,390.06
  6. Step 6: Final answer
    x = 1,622.25

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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.