Home / 2,928.20-4,382.37-1,693.76

Finding the Fourth Proportional to 2,928.20, 4,382.37 and 1,693.76

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Solution

The fourth proportional to 2,928.20, 4,382.37 and 1,693.76 is: 2,534.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.20 : 4,382.37 = 1,693.76 : x
  2. Step 2: Convert to fraction form
    2,928.20/4,382.37 = 1,693.76/x
  3. Step 3: Cross multiply
    2,928.20x = 4,382.37 × 1,693.76
  4. Step 4: Simplify right side
    2,928.20x = 7,422,661.10
  5. Step 5: Solve for x
    x = 7,422,661.10/2,928.20
  6. Step 6: Final answer
    x = 2,534.89

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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.