Home / 7,814.84-11,719.44-2,619.52

Finding the Fourth Proportional to 7,814.84, 11,719.44 and 2,619.52

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Solution

The fourth proportional to 7,814.84, 11,719.44 and 2,619.52 is: 3,928.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,814.84 : 11,719.44 = 2,619.52 : x
  2. Step 2: Convert to fraction form
    7,814.84/11,719.44 = 2,619.52/x
  3. Step 3: Cross multiply
    7,814.84x = 11,719.44 × 2,619.52
  4. Step 4: Simplify right side
    7,814.84x = 30,699,307.47
  5. Step 5: Solve for x
    x = 30,699,307.47/7,814.84
  6. Step 6: Final answer
    x = 3,928.33

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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.