Home / 3,591.37-5,388-1,126.27

Finding the Fourth Proportional to 3,591.37, 5,388 and 1,126.27

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Solution

The fourth proportional to 3,591.37, 5,388 and 1,126.27 is: 1,689.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591.37 : 5,388 = 1,126.27 : x
  2. Step 2: Convert to fraction form
    3,591.37/5,388 = 1,126.27/x
  3. Step 3: Cross multiply
    3,591.37x = 5,388 × 1,126.27
  4. Step 4: Simplify right side
    3,591.37x = 6,068,342.76
  5. Step 5: Solve for x
    x = 6,068,342.76/3,591.37
  6. Step 6: Final answer
    x = 1,689.70

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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.