Home / 2,920.26-4,382.01-1,188.75

Finding the Fourth Proportional to 2,920.26, 4,382.01 and 1,188.75

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Solution

The fourth proportional to 2,920.26, 4,382.01 and 1,188.75 is: 1,783.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.26 : 4,382.01 = 1,188.75 : x
  2. Step 2: Convert to fraction form
    2,920.26/4,382.01 = 1,188.75/x
  3. Step 3: Cross multiply
    2,920.26x = 4,382.01 × 1,188.75
  4. Step 4: Simplify right side
    2,920.26x = 5,209,114.39
  5. Step 5: Solve for x
    x = 5,209,114.39/2,920.26
  6. Step 6: Final answer
    x = 1,783.78

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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.