Home / 2,591.58-3,887.36-2,157.82

Finding the Fourth Proportional to 2,591.58, 3,887.36 and 2,157.82

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Solution

The fourth proportional to 2,591.58, 3,887.36 and 2,157.82 is: 3,236.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,591.58 : 3,887.36 = 2,157.82 : x
  2. Step 2: Convert to fraction form
    2,591.58/3,887.36 = 2,157.82/x
  3. Step 3: Cross multiply
    2,591.58x = 3,887.36 × 2,157.82
  4. Step 4: Simplify right side
    2,591.58x = 8,388,223.16
  5. Step 5: Solve for x
    x = 8,388,223.16/2,591.58
  6. Step 6: Final answer
    x = 3,236.72

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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.