Home / 2,857.03-4,284.45-1,007.80

Finding the Fourth Proportional to 2,857.03, 4,284.45 and 1,007.80

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Solution

The fourth proportional to 2,857.03, 4,284.45 and 1,007.80 is: 1,511.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.03 : 4,284.45 = 1,007.80 : x
  2. Step 2: Convert to fraction form
    2,857.03/4,284.45 = 1,007.80/x
  3. Step 3: Cross multiply
    2,857.03x = 4,284.45 × 1,007.80
  4. Step 4: Simplify right side
    2,857.03x = 4,317,847.29
  5. Step 5: Solve for x
    x = 4,317,847.29/2,857.03
  6. Step 6: Final answer
    x = 1,511.31

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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.