Home / 6,439.06-9,660.42-2,056.86

Finding the Fourth Proportional to 6,439.06, 9,660.42 and 2,056.86

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Solution

The fourth proportional to 6,439.06, 9,660.42 and 2,056.86 is: 3,085.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.06 : 9,660.42 = 2,056.86 : x
  2. Step 2: Convert to fraction form
    6,439.06/9,660.42 = 2,056.86/x
  3. Step 3: Cross multiply
    6,439.06x = 9,660.42 × 2,056.86
  4. Step 4: Simplify right side
    6,439.06x = 19,870,131.48
  5. Step 5: Solve for x
    x = 19,870,131.48/6,439.06
  6. Step 6: Final answer
    x = 3,085.87

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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.