Home / 2,761.64-4,136.86-1,370.80

Finding the Fourth Proportional to 2,761.64, 4,136.86 and 1,370.80

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Solution

The fourth proportional to 2,761.64, 4,136.86 and 1,370.80 is: 2,053.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.64 : 4,136.86 = 1,370.80 : x
  2. Step 2: Convert to fraction form
    2,761.64/4,136.86 = 1,370.80/x
  3. Step 3: Cross multiply
    2,761.64x = 4,136.86 × 1,370.80
  4. Step 4: Simplify right side
    2,761.64x = 5,670,807.69
  5. Step 5: Solve for x
    x = 5,670,807.69/2,761.64
  6. Step 6: Final answer
    x = 2,053.42

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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.