Home / 5,555.56-7,666.68-3,198.46

Finding the Fourth Proportional to 5,555.56, 7,666.68 and 3,198.46

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Solution

The fourth proportional to 5,555.56, 7,666.68 and 3,198.46 is: 4,413.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,555.56 : 7,666.68 = 3,198.46 : x
  2. Step 2: Convert to fraction form
    5,555.56/7,666.68 = 3,198.46/x
  3. Step 3: Cross multiply
    5,555.56x = 7,666.68 × 3,198.46
  4. Step 4: Simplify right side
    5,555.56x = 24,521,569.31
  5. Step 5: Solve for x
    x = 24,521,569.31/5,555.56
  6. Step 6: Final answer
    x = 4,413.88

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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.