Home / 7,112.22-9,814.87-3,968.41

Finding the Fourth Proportional to 7,112.22, 9,814.87 and 3,968.41

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Solution

The fourth proportional to 7,112.22, 9,814.87 and 3,968.41 is: 5,476.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.22 : 9,814.87 = 3,968.41 : x
  2. Step 2: Convert to fraction form
    7,112.22/9,814.87 = 3,968.41/x
  3. Step 3: Cross multiply
    7,112.22x = 9,814.87 × 3,968.41
  4. Step 4: Simplify right side
    7,112.22x = 38,949,428.26
  5. Step 5: Solve for x
    x = 38,949,428.26/7,112.22
  6. Step 6: Final answer
    x = 5,476.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.