Home / 3,636.90-5,455.76-1,788.08

Finding the Fourth Proportional to 3,636.90, 5,455.76 and 1,788.08

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Solution

The fourth proportional to 3,636.90, 5,455.76 and 1,788.08 is: 2,682.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.90 : 5,455.76 = 1,788.08 : x
  2. Step 2: Convert to fraction form
    3,636.90/5,455.76 = 1,788.08/x
  3. Step 3: Cross multiply
    3,636.90x = 5,455.76 × 1,788.08
  4. Step 4: Simplify right side
    3,636.90x = 9,755,299.12
  5. Step 5: Solve for x
    x = 9,755,299.12/3,636.90
  6. Step 6: Final answer
    x = 2,682.31

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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.