Home / 5,376.18-7,419.49-2,986.42

Finding the Fourth Proportional to 5,376.18, 7,419.49 and 2,986.42

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Solution

The fourth proportional to 5,376.18, 7,419.49 and 2,986.42 is: 4,121.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.18 : 7,419.49 = 2,986.42 : x
  2. Step 2: Convert to fraction form
    5,376.18/7,419.49 = 2,986.42/x
  3. Step 3: Cross multiply
    5,376.18x = 7,419.49 × 2,986.42
  4. Step 4: Simplify right side
    5,376.18x = 22,157,705.86
  5. Step 5: Solve for x
    x = 22,157,705.86/5,376.18
  6. Step 6: Final answer
    x = 4,121.46

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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.