Home / 2,799.65-4,190.36-1,698.86

Finding the Fourth Proportional to 2,799.65, 4,190.36 and 1,698.86

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Solution

The fourth proportional to 2,799.65, 4,190.36 and 1,698.86 is: 2,542.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.65 : 4,190.36 = 1,698.86 : x
  2. Step 2: Convert to fraction form
    2,799.65/4,190.36 = 1,698.86/x
  3. Step 3: Cross multiply
    2,799.65x = 4,190.36 × 1,698.86
  4. Step 4: Simplify right side
    2,799.65x = 7,118,805.54
  5. Step 5: Solve for x
    x = 7,118,805.54/2,799.65
  6. Step 6: Final answer
    x = 2,542.75

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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.