Home / 5,078.28-7,007.54-2,982.04

Finding the Fourth Proportional to 5,078.28, 7,007.54 and 2,982.04

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Solution

The fourth proportional to 5,078.28, 7,007.54 and 2,982.04 is: 4,114.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.28 : 7,007.54 = 2,982.04 : x
  2. Step 2: Convert to fraction form
    5,078.28/7,007.54 = 2,982.04/x
  3. Step 3: Cross multiply
    5,078.28x = 7,007.54 × 2,982.04
  4. Step 4: Simplify right side
    5,078.28x = 20,896,764.58
  5. Step 5: Solve for x
    x = 20,896,764.58/5,078.28
  6. Step 6: Final answer
    x = 4,114.93

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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.