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Finding the Fourth Proportional to 1,829.98, 2,739.50 and 1,245.57

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Solution

The fourth proportional to 1,829.98, 2,739.50 and 1,245.57 is: 1,864.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,829.98 : 2,739.50 = 1,245.57 : x
  2. Step 2: Convert to fraction form
    1,829.98/2,739.50 = 1,245.57/x
  3. Step 3: Cross multiply
    1,829.98x = 2,739.50 × 1,245.57
  4. Step 4: Simplify right side
    1,829.98x = 3,412,239.02
  5. Step 5: Solve for x
    x = 3,412,239.02/1,829.98
  6. Step 6: Final answer
    x = 1,864.63

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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.