Home / 5,112.85-7,663.51-2,607

Finding the Fourth Proportional to 5,112.85, 7,663.51 and 2,607

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Solution

The fourth proportional to 5,112.85, 7,663.51 and 2,607 is: 3,907.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.85 : 7,663.51 = 2,607 : x
  2. Step 2: Convert to fraction form
    5,112.85/7,663.51 = 2,607/x
  3. Step 3: Cross multiply
    5,112.85x = 7,663.51 × 2,607
  4. Step 4: Simplify right side
    5,112.85x = 19,978,770.57
  5. Step 5: Solve for x
    x = 19,978,770.57/5,112.85
  6. Step 6: Final answer
    x = 3,907.56

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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.