Home / 7,630.40-11,456.24-3,935.28

Finding the Fourth Proportional to 7,630.40, 11,456.24 and 3,935.28

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Solution

The fourth proportional to 7,630.40, 11,456.24 and 3,935.28 is: 5,908.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,630.40 : 11,456.24 = 3,935.28 : x
  2. Step 2: Convert to fraction form
    7,630.40/11,456.24 = 3,935.28/x
  3. Step 3: Cross multiply
    7,630.40x = 11,456.24 × 3,935.28
  4. Step 4: Simplify right side
    7,630.40x = 45,083,535.43
  5. Step 5: Solve for x
    x = 45,083,535.43/7,630.40
  6. Step 6: Final answer
    x = 5,908.41

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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.