Home / 2,005.10-3,007.11-1,359.80

Finding the Fourth Proportional to 2,005.10, 3,007.11 and 1,359.80

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Solution

The fourth proportional to 2,005.10, 3,007.11 and 1,359.80 is: 2,039.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005.10 : 3,007.11 = 1,359.80 : x
  2. Step 2: Convert to fraction form
    2,005.10/3,007.11 = 1,359.80/x
  3. Step 3: Cross multiply
    2,005.10x = 3,007.11 × 1,359.80
  4. Step 4: Simplify right side
    2,005.10x = 4,089,068.18
  5. Step 5: Solve for x
    x = 4,089,068.18/2,005.10
  6. Step 6: Final answer
    x = 2,039.33

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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.