Home / 6,661.10-9,993.18-2,278.55

Finding the Fourth Proportional to 6,661.10, 9,993.18 and 2,278.55

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Solution

The fourth proportional to 6,661.10, 9,993.18 and 2,278.55 is: 3,418.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.10 : 9,993.18 = 2,278.55 : x
  2. Step 2: Convert to fraction form
    6,661.10/9,993.18 = 2,278.55/x
  3. Step 3: Cross multiply
    6,661.10x = 9,993.18 × 2,278.55
  4. Step 4: Simplify right side
    6,661.10x = 22,769,993.82
  5. Step 5: Solve for x
    x = 22,769,993.82/6,661.10
  6. Step 6: Final answer
    x = 3,418.35

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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.