Home / 3,928.10-5,888.03-1,427.63

Finding the Fourth Proportional to 3,928.10, 5,888.03 and 1,427.63

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Solution

The fourth proportional to 3,928.10, 5,888.03 and 1,427.63 is: 2,139.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.10 : 5,888.03 = 1,427.63 : x
  2. Step 2: Convert to fraction form
    3,928.10/5,888.03 = 1,427.63/x
  3. Step 3: Cross multiply
    3,928.10x = 5,888.03 × 1,427.63
  4. Step 4: Simplify right side
    3,928.10x = 8,405,891.69
  5. Step 5: Solve for x
    x = 8,405,891.69/3,928.10
  6. Step 6: Final answer
    x = 2,139.94

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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.