Home / 6,291.97-9,439.35-2,131.63

Finding the Fourth Proportional to 6,291.97, 9,439.35 and 2,131.63

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Solution

The fourth proportional to 6,291.97, 9,439.35 and 2,131.63 is: 3,197.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.97 : 9,439.35 = 2,131.63 : x
  2. Step 2: Convert to fraction form
    6,291.97/9,439.35 = 2,131.63/x
  3. Step 3: Cross multiply
    6,291.97x = 9,439.35 × 2,131.63
  4. Step 4: Simplify right side
    6,291.97x = 20,121,201.64
  5. Step 5: Solve for x
    x = 20,121,201.64/6,291.97
  6. Step 6: Final answer
    x = 3,197.92

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Double scale
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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.