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Finding the Fourth Proportional to 3,243.98, 4,866.62 and 2,780.60

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Solution

The fourth proportional to 3,243.98, 4,866.62 and 2,780.60 is: 4,171.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.98 : 4,866.62 = 2,780.60 : x
  2. Step 2: Convert to fraction form
    3,243.98/4,866.62 = 2,780.60/x
  3. Step 3: Cross multiply
    3,243.98x = 4,866.62 × 2,780.60
  4. Step 4: Simplify right side
    3,243.98x = 13,532,085.34
  5. Step 5: Solve for x
    x = 13,532,085.34/3,243.98
  6. Step 6: Final answer
    x = 4,171.44

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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.