Home / 5,971.28-8,240.64-3,318.60

Finding the Fourth Proportional to 5,971.28, 8,240.64 and 3,318.60

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Solution

The fourth proportional to 5,971.28, 8,240.64 and 3,318.60 is: 4,579.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,971.28 : 8,240.64 = 3,318.60 : x
  2. Step 2: Convert to fraction form
    5,971.28/8,240.64 = 3,318.60/x
  3. Step 3: Cross multiply
    5,971.28x = 8,240.64 × 3,318.60
  4. Step 4: Simplify right side
    5,971.28x = 27,347,387.90
  5. Step 5: Solve for x
    x = 27,347,387.90/5,971.28
  6. Step 6: Final answer
    x = 4,579.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.