Home / 2,743.80-3,786.44-1,564.86

Finding the Fourth Proportional to 2,743.80, 3,786.44 and 1,564.86

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Solution

The fourth proportional to 2,743.80, 3,786.44 and 1,564.86 is: 2,159.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,743.80 : 3,786.44 = 1,564.86 : x
  2. Step 2: Convert to fraction form
    2,743.80/3,786.44 = 1,564.86/x
  3. Step 3: Cross multiply
    2,743.80x = 3,786.44 × 1,564.86
  4. Step 4: Simplify right side
    2,743.80x = 5,925,240.67
  5. Step 5: Solve for x
    x = 5,925,240.67/2,743.80
  6. Step 6: Final answer
    x = 2,159.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.