Home / 6,439.68-9,654.96-3,318.34

Finding the Fourth Proportional to 6,439.68, 9,654.96 and 3,318.34

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Solution

The fourth proportional to 6,439.68, 9,654.96 and 3,318.34 is: 4,975.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.68 : 9,654.96 = 3,318.34 : x
  2. Step 2: Convert to fraction form
    6,439.68/9,654.96 = 3,318.34/x
  3. Step 3: Cross multiply
    6,439.68x = 9,654.96 × 3,318.34
  4. Step 4: Simplify right side
    6,439.68x = 32,038,439.97
  5. Step 5: Solve for x
    x = 32,038,439.97/6,439.68
  6. Step 6: Final answer
    x = 4,975.16

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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.