Home / 6,455.86-9,684.80-2,758.11

Finding the Fourth Proportional to 6,455.86, 9,684.80 and 2,758.11

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Solution

The fourth proportional to 6,455.86, 9,684.80 and 2,758.11 is: 4,137.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,455.86 : 9,684.80 = 2,758.11 : x
  2. Step 2: Convert to fraction form
    6,455.86/9,684.80 = 2,758.11/x
  3. Step 3: Cross multiply
    6,455.86x = 9,684.80 × 2,758.11
  4. Step 4: Simplify right side
    6,455.86x = 26,711,743.73
  5. Step 5: Solve for x
    x = 26,711,743.73/6,455.86
  6. Step 6: Final answer
    x = 4,137.60

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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.