Home / 4,930.47-7,388.06-2,428.79

Finding the Fourth Proportional to 4,930.47, 7,388.06 and 2,428.79

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Solution

The fourth proportional to 4,930.47, 7,388.06 and 2,428.79 is: 3,639.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,930.47 : 7,388.06 = 2,428.79 : x
  2. Step 2: Convert to fraction form
    4,930.47/7,388.06 = 2,428.79/x
  3. Step 3: Cross multiply
    4,930.47x = 7,388.06 × 2,428.79
  4. Step 4: Simplify right side
    4,930.47x = 17,943,997.16
  5. Step 5: Solve for x
    x = 17,943,997.16/4,930.47
  6. Step 6: Final answer
    x = 3,639.41

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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.