Home / 3,578.34-4,930.14-2,678.04

Finding the Fourth Proportional to 3,578.34, 4,930.14 and 2,678.04

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Solution

The fourth proportional to 3,578.34, 4,930.14 and 2,678.04 is: 3,689.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.34 : 4,930.14 = 2,678.04 : x
  2. Step 2: Convert to fraction form
    3,578.34/4,930.14 = 2,678.04/x
  3. Step 3: Cross multiply
    3,578.34x = 4,930.14 × 2,678.04
  4. Step 4: Simplify right side
    3,578.34x = 13,203,112.13
  5. Step 5: Solve for x
    x = 13,203,112.13/3,578.34
  6. Step 6: Final answer
    x = 3,689.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.