Home / 3,867.80-5,802.68-1,789.29

Finding the Fourth Proportional to 3,867.80, 5,802.68 and 1,789.29

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Solution

The fourth proportional to 3,867.80, 5,802.68 and 1,789.29 is: 2,684.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.80 : 5,802.68 = 1,789.29 : x
  2. Step 2: Convert to fraction form
    3,867.80/5,802.68 = 1,789.29/x
  3. Step 3: Cross multiply
    3,867.80x = 5,802.68 × 1,789.29
  4. Step 4: Simplify right side
    3,867.80x = 10,382,681.77
  5. Step 5: Solve for x
    x = 10,382,681.77/3,867.80
  6. Step 6: Final answer
    x = 2,684.39

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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.