Home / 1,698.26-2,343.58-999.62

Finding the Fourth Proportional to 1,698.26, 2,343.58 and 999.62

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Solution

The fourth proportional to 1,698.26, 2,343.58 and 999.62 is: 1,379.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698.26 : 2,343.58 = 999.62 : x
  2. Step 2: Convert to fraction form
    1,698.26/2,343.58 = 999.62/x
  3. Step 3: Cross multiply
    1,698.26x = 2,343.58 × 999.62
  4. Step 4: Simplify right side
    1,698.26x = 2,342,689.44
  5. Step 5: Solve for x
    x = 2,342,689.44/1,698.26
  6. Step 6: Final answer
    x = 1,379.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.