Home / 2,739.18-3,780.40-1,544.39

Finding the Fourth Proportional to 2,739.18, 3,780.40 and 1,544.39

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Solution

The fourth proportional to 2,739.18, 3,780.40 and 1,544.39 is: 2,131.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.18 : 3,780.40 = 1,544.39 : x
  2. Step 2: Convert to fraction form
    2,739.18/3,780.40 = 1,544.39/x
  3. Step 3: Cross multiply
    2,739.18x = 3,780.40 × 1,544.39
  4. Step 4: Simplify right side
    2,739.18x = 5,838,422.97
  5. Step 5: Solve for x
    x = 5,838,422.97/2,739.18
  6. Step 6: Final answer
    x = 2,131.45

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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.