Home / 6,449.37-9,678.78-2,554.89

Finding the Fourth Proportional to 6,449.37, 9,678.78 and 2,554.89

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Solution

The fourth proportional to 6,449.37, 9,678.78 and 2,554.89 is: 3,834.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,449.37 : 9,678.78 = 2,554.89 : x
  2. Step 2: Convert to fraction form
    6,449.37/9,678.78 = 2,554.89/x
  3. Step 3: Cross multiply
    6,449.37x = 9,678.78 × 2,554.89
  4. Step 4: Simplify right side
    6,449.37x = 24,728,218.23
  5. Step 5: Solve for x
    x = 24,728,218.23/6,449.37
  6. Step 6: Final answer
    x = 3,834.21

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1.5x scale

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.