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Finding the Fourth Proportional to 5,376.24, 7,419.24 and 3,018.38

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Solution

The fourth proportional to 5,376.24, 7,419.24 and 3,018.38 is: 4,165.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.24 : 7,419.24 = 3,018.38 : x
  2. Step 2: Convert to fraction form
    5,376.24/7,419.24 = 3,018.38/x
  3. Step 3: Cross multiply
    5,376.24x = 7,419.24 × 3,018.38
  4. Step 4: Simplify right side
    5,376.24x = 22,394,048.54
  5. Step 5: Solve for x
    x = 22,394,048.54/5,376.24
  6. Step 6: Final answer
    x = 4,165.37

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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.