Home / 2,456.44-3,685.21-812.98

Finding the Fourth Proportional to 2,456.44, 3,685.21 and 812.98

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Solution

The fourth proportional to 2,456.44, 3,685.21 and 812.98 is: 1,219.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456.44 : 3,685.21 = 812.98 : x
  2. Step 2: Convert to fraction form
    2,456.44/3,685.21 = 812.98/x
  3. Step 3: Cross multiply
    2,456.44x = 3,685.21 × 812.98
  4. Step 4: Simplify right side
    2,456.44x = 2,996,002.03
  5. Step 5: Solve for x
    x = 2,996,002.03/2,456.44
  6. Step 6: Final answer
    x = 1,219.65

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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.