Home / 5,418.86-7,477.64-3,149.98

Finding the Fourth Proportional to 5,418.86, 7,477.64 and 3,149.98

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Solution

The fourth proportional to 5,418.86, 7,477.64 and 3,149.98 is: 4,346.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.86 : 7,477.64 = 3,149.98 : x
  2. Step 2: Convert to fraction form
    5,418.86/7,477.64 = 3,149.98/x
  3. Step 3: Cross multiply
    5,418.86x = 7,477.64 × 3,149.98
  4. Step 4: Simplify right side
    5,418.86x = 23,554,416.45
  5. Step 5: Solve for x
    x = 23,554,416.45/5,418.86
  6. Step 6: Final answer
    x = 4,346.75

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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.