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Finding the Fourth Proportional to 6,393.81, 9,591.12 and 2,011.44

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Solution

The fourth proportional to 6,393.81, 9,591.12 and 2,011.44 is: 3,017.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,393.81 : 9,591.12 = 2,011.44 : x
  2. Step 2: Convert to fraction form
    6,393.81/9,591.12 = 2,011.44/x
  3. Step 3: Cross multiply
    6,393.81x = 9,591.12 × 2,011.44
  4. Step 4: Simplify right side
    6,393.81x = 19,291,962.41
  5. Step 5: Solve for x
    x = 19,291,962.41/6,393.81
  6. Step 6: Final answer
    x = 3,017.29

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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.