Home / 3,686.67-5,530.89-1,089.62

Finding the Fourth Proportional to 3,686.67, 5,530.89 and 1,089.62

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Solution

The fourth proportional to 3,686.67, 5,530.89 and 1,089.62 is: 1,634.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.67 : 5,530.89 = 1,089.62 : x
  2. Step 2: Convert to fraction form
    3,686.67/5,530.89 = 1,089.62/x
  3. Step 3: Cross multiply
    3,686.67x = 5,530.89 × 1,089.62
  4. Step 4: Simplify right side
    3,686.67x = 6,026,540.71
  5. Step 5: Solve for x
    x = 6,026,540.71/3,686.67
  6. Step 6: Final answer
    x = 1,634.68

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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.