Home / 6,423.78-9,639.31-2,530.92

Finding the Fourth Proportional to 6,423.78, 9,639.31 and 2,530.92

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Solution

The fourth proportional to 6,423.78, 9,639.31 and 2,530.92 is: 3,797.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,423.78 : 9,639.31 = 2,530.92 : x
  2. Step 2: Convert to fraction form
    6,423.78/9,639.31 = 2,530.92/x
  3. Step 3: Cross multiply
    6,423.78x = 9,639.31 × 2,530.92
  4. Step 4: Simplify right side
    6,423.78x = 24,396,289.48
  5. Step 5: Solve for x
    x = 24,396,289.48/6,423.78
  6. Step 6: Final answer
    x = 3,797.81

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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.