Home / 4,187.12-6,276.96-1,591.88

Finding the Fourth Proportional to 4,187.12, 6,276.96 and 1,591.88

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Solution

The fourth proportional to 4,187.12, 6,276.96 and 1,591.88 is: 2,386.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.12 : 6,276.96 = 1,591.88 : x
  2. Step 2: Convert to fraction form
    4,187.12/6,276.96 = 1,591.88/x
  3. Step 3: Cross multiply
    4,187.12x = 6,276.96 × 1,591.88
  4. Step 4: Simplify right side
    4,187.12x = 9,992,167.08
  5. Step 5: Solve for x
    x = 9,992,167.08/4,187.12
  6. Step 6: Final answer
    x = 2,386.41

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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.