Home / 1,558.64-2,150.96-850.50

Finding the Fourth Proportional to 1,558.64, 2,150.96 and 850.50

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Solution

The fourth proportional to 1,558.64, 2,150.96 and 850.50 is: 1,173.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.64 : 2,150.96 = 850.50 : x
  2. Step 2: Convert to fraction form
    1,558.64/2,150.96 = 850.50/x
  3. Step 3: Cross multiply
    1,558.64x = 2,150.96 × 850.50
  4. Step 4: Simplify right side
    1,558.64x = 1,829,387.23
  5. Step 5: Solve for x
    x = 1,829,387.23/1,558.64
  6. Step 6: Final answer
    x = 1,173.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.