Home / 5,685.75-7,846.56-3,167.88

Finding the Fourth Proportional to 5,685.75, 7,846.56 and 3,167.88

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Solution

The fourth proportional to 5,685.75, 7,846.56 and 3,167.88 is: 4,371.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.75 : 7,846.56 = 3,167.88 : x
  2. Step 2: Convert to fraction form
    5,685.75/7,846.56 = 3,167.88/x
  3. Step 3: Cross multiply
    5,685.75x = 7,846.56 × 3,167.88
  4. Step 4: Simplify right side
    5,685.75x = 24,856,960.49
  5. Step 5: Solve for x
    x = 24,856,960.49/5,685.75
  6. Step 6: Final answer
    x = 4,371.80

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.