Home / 2,898.10-3,999.36-1,639.41

Finding the Fourth Proportional to 2,898.10, 3,999.36 and 1,639.41

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Solution

The fourth proportional to 2,898.10, 3,999.36 and 1,639.41 is: 2,262.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,898.10 : 3,999.36 = 1,639.41 : x
  2. Step 2: Convert to fraction form
    2,898.10/3,999.36 = 1,639.41/x
  3. Step 3: Cross multiply
    2,898.10x = 3,999.36 × 1,639.41
  4. Step 4: Simplify right side
    2,898.10x = 6,556,562.58
  5. Step 5: Solve for x
    x = 6,556,562.58/2,898.10
  6. Step 6: Final answer
    x = 2,262.36

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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.