Home / 5,078.06-7,008.05-2,839.94

Finding the Fourth Proportional to 5,078.06, 7,008.05 and 2,839.94

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Solution

The fourth proportional to 5,078.06, 7,008.05 and 2,839.94 is: 3,919.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.06 : 7,008.05 = 2,839.94 : x
  2. Step 2: Convert to fraction form
    5,078.06/7,008.05 = 2,839.94/x
  3. Step 3: Cross multiply
    5,078.06x = 7,008.05 × 2,839.94
  4. Step 4: Simplify right side
    5,078.06x = 19,902,392.28
  5. Step 5: Solve for x
    x = 19,902,392.28/5,078.06
  6. Step 6: Final answer
    x = 3,919.29

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1.5x scale

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.