Home / 6,286.17-9,429.28-2,126.21

Finding the Fourth Proportional to 6,286.17, 9,429.28 and 2,126.21

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Solution

The fourth proportional to 6,286.17, 9,429.28 and 2,126.21 is: 3,189.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,286.17 : 9,429.28 = 2,126.21 : x
  2. Step 2: Convert to fraction form
    6,286.17/9,429.28 = 2,126.21/x
  3. Step 3: Cross multiply
    6,286.17x = 9,429.28 × 2,126.21
  4. Step 4: Simplify right side
    6,286.17x = 20,048,629.43
  5. Step 5: Solve for x
    x = 20,048,629.43/6,286.17
  6. Step 6: Final answer
    x = 3,189.32

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Half scale
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Double scale
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Similar ratio
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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.