Home / 3,588.32-5,379.84-1,121.76

Finding the Fourth Proportional to 3,588.32, 5,379.84 and 1,121.76

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Solution

The fourth proportional to 3,588.32, 5,379.84 and 1,121.76 is: 1,681.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,588.32 : 5,379.84 = 1,121.76 : x
  2. Step 2: Convert to fraction form
    3,588.32/5,379.84 = 1,121.76/x
  3. Step 3: Cross multiply
    3,588.32x = 5,379.84 × 1,121.76
  4. Step 4: Simplify right side
    3,588.32x = 6,034,889.32
  5. Step 5: Solve for x
    x = 6,034,889.32/3,588.32
  6. Step 6: Final answer
    x = 1,681.81

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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.