Home / 5,376.44-7,419.40-2,986.36

Finding the Fourth Proportional to 5,376.44, 7,419.40 and 2,986.36

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Solution

The fourth proportional to 5,376.44, 7,419.40 and 2,986.36 is: 4,121.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.44 : 7,419.40 = 2,986.36 : x
  2. Step 2: Convert to fraction form
    5,376.44/7,419.40 = 2,986.36/x
  3. Step 3: Cross multiply
    5,376.44x = 7,419.40 × 2,986.36
  4. Step 4: Simplify right side
    5,376.44x = 22,156,999.38
  5. Step 5: Solve for x
    x = 22,156,999.38/5,376.44
  6. Step 6: Final answer
    x = 4,121.13

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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.