Home / 3,190.93-4,786.39-999.64

Finding the Fourth Proportional to 3,190.93, 4,786.39 and 999.64

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Solution

The fourth proportional to 3,190.93, 4,786.39 and 999.64 is: 1,499.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.93 : 4,786.39 = 999.64 : x
  2. Step 2: Convert to fraction form
    3,190.93/4,786.39 = 999.64/x
  3. Step 3: Cross multiply
    3,190.93x = 4,786.39 × 999.64
  4. Step 4: Simplify right side
    3,190.93x = 4,784,666.90
  5. Step 5: Solve for x
    x = 4,784,666.90/3,190.93
  6. Step 6: Final answer
    x = 1,499.46

Related Problems

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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.