Home / 6,431.89-9,653.79-3,971.53

Finding the Fourth Proportional to 6,431.89, 9,653.79 and 3,971.53

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Solution

The fourth proportional to 6,431.89, 9,653.79 and 3,971.53 is: 5,960.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,431.89 : 9,653.79 = 3,971.53 : x
  2. Step 2: Convert to fraction form
    6,431.89/9,653.79 = 3,971.53/x
  3. Step 3: Cross multiply
    6,431.89x = 9,653.79 × 3,971.53
  4. Step 4: Simplify right side
    6,431.89x = 38,340,316.60
  5. Step 5: Solve for x
    x = 38,340,316.60/6,431.89
  6. Step 6: Final answer
    x = 5,960.97

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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.