Home / 4,540.98-6,811.54-1,420.86

Finding the Fourth Proportional to 4,540.98, 6,811.54 and 1,420.86

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Solution

The fourth proportional to 4,540.98, 6,811.54 and 1,420.86 is: 2,131.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,540.98 : 6,811.54 = 1,420.86 : x
  2. Step 2: Convert to fraction form
    4,540.98/6,811.54 = 1,420.86/x
  3. Step 3: Cross multiply
    4,540.98x = 6,811.54 × 1,420.86
  4. Step 4: Simplify right side
    4,540.98x = 9,678,241.17
  5. Step 5: Solve for x
    x = 9,678,241.17/4,540.98
  6. Step 6: Final answer
    x = 2,131.31

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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.