Home / 5,420.98-8,142.36-3,233.98

Finding the Fourth Proportional to 5,420.98, 8,142.36 and 3,233.98

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Solution

The fourth proportional to 5,420.98, 8,142.36 and 3,233.98 is: 4,857.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.98 : 8,142.36 = 3,233.98 : x
  2. Step 2: Convert to fraction form
    5,420.98/8,142.36 = 3,233.98/x
  3. Step 3: Cross multiply
    5,420.98x = 8,142.36 × 3,233.98
  4. Step 4: Simplify right side
    5,420.98x = 26,332,229.39
  5. Step 5: Solve for x
    x = 26,332,229.39/5,420.98
  6. Step 6: Final answer
    x = 4,857.47

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1.5x scale

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.