Home / 2,698.51-4,048.43-2,145.30

Finding the Fourth Proportional to 2,698.51, 4,048.43 and 2,145.30

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Solution

The fourth proportional to 2,698.51, 4,048.43 and 2,145.30 is: 3,218.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,698.51 : 4,048.43 = 2,145.30 : x
  2. Step 2: Convert to fraction form
    2,698.51/4,048.43 = 2,145.30/x
  3. Step 3: Cross multiply
    2,698.51x = 4,048.43 × 2,145.30
  4. Step 4: Simplify right side
    2,698.51x = 8,685,096.88
  5. Step 5: Solve for x
    x = 8,685,096.88/2,698.51
  6. Step 6: Final answer
    x = 3,218.48

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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.