Home / 2,781.53-4,169.93-1,220.34

Finding the Fourth Proportional to 2,781.53, 4,169.93 and 1,220.34

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Solution

The fourth proportional to 2,781.53, 4,169.93 and 1,220.34 is: 1,829.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.53 : 4,169.93 = 1,220.34 : x
  2. Step 2: Convert to fraction form
    2,781.53/4,169.93 = 1,220.34/x
  3. Step 3: Cross multiply
    2,781.53x = 4,169.93 × 1,220.34
  4. Step 4: Simplify right side
    2,781.53x = 5,088,726.27
  5. Step 5: Solve for x
    x = 5,088,726.27/2,781.53
  6. Step 6: Final answer
    x = 1,829.47

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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.