Home / 6,383.10-9,578.25-2,688.78

Finding the Fourth Proportional to 6,383.10, 9,578.25 and 2,688.78

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Solution

The fourth proportional to 6,383.10, 9,578.25 and 2,688.78 is: 4,034.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,383.10 : 9,578.25 = 2,688.78 : x
  2. Step 2: Convert to fraction form
    6,383.10/9,578.25 = 2,688.78/x
  3. Step 3: Cross multiply
    6,383.10x = 9,578.25 × 2,688.78
  4. Step 4: Simplify right side
    6,383.10x = 25,753,807.04
  5. Step 5: Solve for x
    x = 25,753,807.04/6,383.10
  6. Step 6: Final answer
    x = 4,034.69

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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.