Home / 4,930.07-7,388.82-2,156.00

Finding the Fourth Proportional to 4,930.07, 7,388.82 and 2,156.00

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Solution

The fourth proportional to 4,930.07, 7,388.82 and 2,156.00 is: 3,231.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,930.07 : 7,388.82 = 2,156.00 : x
  2. Step 2: Convert to fraction form
    4,930.07/7,388.82 = 2,156.00/x
  3. Step 3: Cross multiply
    4,930.07x = 7,388.82 × 2,156.00
  4. Step 4: Simplify right side
    4,930.07x = 15,930,258.98
  5. Step 5: Solve for x
    x = 15,930,258.98/4,930.07
  6. Step 6: Final answer
    x = 3,231.25

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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.