Home / 6,439.96-9,660.38-2,057.74

Finding the Fourth Proportional to 6,439.96, 9,660.38 and 2,057.74

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Solution

The fourth proportional to 6,439.96, 9,660.38 and 2,057.74 is: 3,086.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.96 : 9,660.38 = 2,057.74 : x
  2. Step 2: Convert to fraction form
    6,439.96/9,660.38 = 2,057.74/x
  3. Step 3: Cross multiply
    6,439.96x = 9,660.38 × 2,057.74
  4. Step 4: Simplify right side
    6,439.96x = 19,878,550.34
  5. Step 5: Solve for x
    x = 19,878,550.34/6,439.96
  6. Step 6: Final answer
    x = 3,086.75

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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.