Home / 2,739.42-3,780.66-1,560.60

Finding the Fourth Proportional to 2,739.42, 3,780.66 and 1,560.60

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Solution

The fourth proportional to 2,739.42, 3,780.66 and 1,560.60 is: 2,153.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.42 : 3,780.66 = 1,560.60 : x
  2. Step 2: Convert to fraction form
    2,739.42/3,780.66 = 1,560.60/x
  3. Step 3: Cross multiply
    2,739.42x = 3,780.66 × 1,560.60
  4. Step 4: Simplify right side
    2,739.42x = 5,900,098.00
  5. Step 5: Solve for x
    x = 5,900,098.00/2,739.42
  6. Step 6: Final answer
    x = 2,153.78

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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.