Home / 6,439.05-9,660.41-2,056.85

Finding the Fourth Proportional to 6,439.05, 9,660.41 and 2,056.85

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Solution

The fourth proportional to 6,439.05, 9,660.41 and 2,056.85 is: 3,085.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.05 : 9,660.41 = 2,056.85 : x
  2. Step 2: Convert to fraction form
    6,439.05/9,660.41 = 2,056.85/x
  3. Step 3: Cross multiply
    6,439.05x = 9,660.41 × 2,056.85
  4. Step 4: Simplify right side
    6,439.05x = 19,870,014.31
  5. Step 5: Solve for x
    x = 19,870,014.31/6,439.05
  6. Step 6: Final answer
    x = 3,085.86

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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.