Home / 7,619.13-11,419.56-3,923.10

Finding the Fourth Proportional to 7,619.13, 11,419.56 and 3,923.10

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Solution

The fourth proportional to 7,619.13, 11,419.56 and 3,923.10 is: 5,879.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.13 : 11,419.56 = 3,923.10 : x
  2. Step 2: Convert to fraction form
    7,619.13/11,419.56 = 3,923.10/x
  3. Step 3: Cross multiply
    7,619.13x = 11,419.56 × 3,923.10
  4. Step 4: Simplify right side
    7,619.13x = 44,800,075.84
  5. Step 5: Solve for x
    x = 44,800,075.84/7,619.13
  6. Step 6: Final answer
    x = 5,879.95

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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.