Home / 3,687.07-5,530.61-1,089.81

Finding the Fourth Proportional to 3,687.07, 5,530.61 and 1,089.81

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Solution

The fourth proportional to 3,687.07, 5,530.61 and 1,089.81 is: 1,634.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.07 : 5,530.61 = 1,089.81 : x
  2. Step 2: Convert to fraction form
    3,687.07/5,530.61 = 1,089.81/x
  3. Step 3: Cross multiply
    3,687.07x = 5,530.61 × 1,089.81
  4. Step 4: Simplify right side
    3,687.07x = 6,027,314.08
  5. Step 5: Solve for x
    x = 6,027,314.08/3,687.07
  6. Step 6: Final answer
    x = 1,634.72

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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.