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Finding the Fourth Proportional to 6,404.14, 9,606.21 and 1,787.14

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Solution

The fourth proportional to 6,404.14, 9,606.21 and 1,787.14 is: 2,680.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,404.14 : 9,606.21 = 1,787.14 : x
  2. Step 2: Convert to fraction form
    6,404.14/9,606.21 = 1,787.14/x
  3. Step 3: Cross multiply
    6,404.14x = 9,606.21 × 1,787.14
  4. Step 4: Simplify right side
    6,404.14x = 17,167,642.14
  5. Step 5: Solve for x
    x = 17,167,642.14/6,404.14
  6. Step 6: Final answer
    x = 2,680.71

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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.