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Finding the Fourth Proportional to 5,376.44, 7,419.14 and 2,986.22

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Solution

The fourth proportional to 5,376.44, 7,419.14 and 2,986.22 is: 4,120.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.44 : 7,419.14 = 2,986.22 : x
  2. Step 2: Convert to fraction form
    5,376.44/7,419.14 = 2,986.22/x
  3. Step 3: Cross multiply
    5,376.44x = 7,419.14 × 2,986.22
  4. Step 4: Simplify right side
    5,376.44x = 22,155,202.18
  5. Step 5: Solve for x
    x = 22,155,202.18/5,376.44
  6. Step 6: Final answer
    x = 4,120.80

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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.