Home / 6,331.20-9,495.90-2,171.40

Finding the Fourth Proportional to 6,331.20, 9,495.90 and 2,171.40

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Solution

The fourth proportional to 6,331.20, 9,495.90 and 2,171.40 is: 3,256.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,331.20 : 9,495.90 = 2,171.40 : x
  2. Step 2: Convert to fraction form
    6,331.20/9,495.90 = 2,171.40/x
  3. Step 3: Cross multiply
    6,331.20x = 9,495.90 × 2,171.40
  4. Step 4: Simplify right side
    6,331.20x = 20,619,397.26
  5. Step 5: Solve for x
    x = 20,619,397.26/6,331.20
  6. Step 6: Final answer
    x = 3,256.79

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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.