Home / 5,424.72-8,138.36-1,962

Finding the Fourth Proportional to 5,424.72, 8,138.36 and 1,962

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Solution

The fourth proportional to 5,424.72, 8,138.36 and 1,962 is: 2,943.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.72 : 8,138.36 = 1,962 : x
  2. Step 2: Convert to fraction form
    5,424.72/8,138.36 = 1,962/x
  3. Step 3: Cross multiply
    5,424.72x = 8,138.36 × 1,962
  4. Step 4: Simplify right side
    5,424.72x = 15,967,462.32
  5. Step 5: Solve for x
    x = 15,967,462.32/5,424.72
  6. Step 6: Final answer
    x = 2,943.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.