Home / 1,816.47-2,726.33-1,239.75

Finding the Fourth Proportional to 1,816.47, 2,726.33 and 1,239.75

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Solution

The fourth proportional to 1,816.47, 2,726.33 and 1,239.75 is: 1,860.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.47 : 2,726.33 = 1,239.75 : x
  2. Step 2: Convert to fraction form
    1,816.47/2,726.33 = 1,239.75/x
  3. Step 3: Cross multiply
    1,816.47x = 2,726.33 × 1,239.75
  4. Step 4: Simplify right side
    1,816.47x = 3,379,961.42
  5. Step 5: Solve for x
    x = 3,379,961.42/1,816.47
  6. Step 6: Final answer
    x = 1,860.73

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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.