Home / 5,078.16-7,008.12-2,839.98

Finding the Fourth Proportional to 5,078.16, 7,008.12 and 2,839.98

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Solution

The fourth proportional to 5,078.16, 7,008.12 and 2,839.98 is: 3,919.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.16 : 7,008.12 = 2,839.98 : x
  2. Step 2: Convert to fraction form
    5,078.16/7,008.12 = 2,839.98/x
  3. Step 3: Cross multiply
    5,078.16x = 7,008.12 × 2,839.98
  4. Step 4: Simplify right side
    5,078.16x = 19,902,920.64
  5. Step 5: Solve for x
    x = 19,902,920.64/5,078.16
  6. Step 6: Final answer
    x = 3,919.32

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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.