Home / 4,331.80-6,498.11-1,211.80

Finding the Fourth Proportional to 4,331.80, 6,498.11 and 1,211.80

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Solution

The fourth proportional to 4,331.80, 6,498.11 and 1,211.80 is: 1,817.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,331.80 : 6,498.11 = 1,211.80 : x
  2. Step 2: Convert to fraction form
    4,331.80/6,498.11 = 1,211.80/x
  3. Step 3: Cross multiply
    4,331.80x = 6,498.11 × 1,211.80
  4. Step 4: Simplify right side
    4,331.80x = 7,874,387.39
  5. Step 5: Solve for x
    x = 7,874,387.39/4,331.80
  6. Step 6: Final answer
    x = 1,817.81

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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.