Home / 2,674.38-4,012.86-1,115.58

Finding the Fourth Proportional to 2,674.38, 4,012.86 and 1,115.58

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Solution

The fourth proportional to 2,674.38, 4,012.86 and 1,115.58 is: 1,673.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.38 : 4,012.86 = 1,115.58 : x
  2. Step 2: Convert to fraction form
    2,674.38/4,012.86 = 1,115.58/x
  3. Step 3: Cross multiply
    2,674.38x = 4,012.86 × 1,115.58
  4. Step 4: Simplify right side
    2,674.38x = 4,476,666.36
  5. Step 5: Solve for x
    x = 4,476,666.36/2,674.38
  6. Step 6: Final answer
    x = 1,673.91

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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.