Home / 5,278.43-7,929.90-4,995

Finding the Fourth Proportional to 5,278.43, 7,929.90 and 4,995

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Solution

The fourth proportional to 5,278.43, 7,929.90 and 4,995 is: 7,504.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.43 : 7,929.90 = 4,995 : x
  2. Step 2: Convert to fraction form
    5,278.43/7,929.90 = 4,995/x
  3. Step 3: Cross multiply
    5,278.43x = 7,929.90 × 4,995
  4. Step 4: Simplify right side
    5,278.43x = 39,609,850.50
  5. Step 5: Solve for x
    x = 39,609,850.50/5,278.43
  6. Step 6: Final answer
    x = 7,504.10

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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.