Home / 3,456.17-5,183.49-990.44

Finding the Fourth Proportional to 3,456.17, 5,183.49 and 990.44

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Solution

The fourth proportional to 3,456.17, 5,183.49 and 990.44 is: 1,485.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.17 : 5,183.49 = 990.44 : x
  2. Step 2: Convert to fraction form
    3,456.17/5,183.49 = 990.44/x
  3. Step 3: Cross multiply
    3,456.17x = 5,183.49 × 990.44
  4. Step 4: Simplify right side
    3,456.17x = 5,133,935.84
  5. Step 5: Solve for x
    x = 5,133,935.84/3,456.17
  6. Step 6: Final answer
    x = 1,485.44

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.