Home / 2,675.86-4,012.36-1,358.80

Finding the Fourth Proportional to 2,675.86, 4,012.36 and 1,358.80

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Solution

The fourth proportional to 2,675.86, 4,012.36 and 1,358.80 is: 2,037.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.86 : 4,012.36 = 1,358.80 : x
  2. Step 2: Convert to fraction form
    2,675.86/4,012.36 = 1,358.80/x
  3. Step 3: Cross multiply
    2,675.86x = 4,012.36 × 1,358.80
  4. Step 4: Simplify right side
    2,675.86x = 5,451,996.45
  5. Step 5: Solve for x
    x = 5,451,996.45/2,675.86
  6. Step 6: Final answer
    x = 2,037.47

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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.