Home / 3,815.50-5,723.25-1,218.64

Finding the Fourth Proportional to 3,815.50, 5,723.25 and 1,218.64

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Solution

The fourth proportional to 3,815.50, 5,723.25 and 1,218.64 is: 1,827.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.50 : 5,723.25 = 1,218.64 : x
  2. Step 2: Convert to fraction form
    3,815.50/5,723.25 = 1,218.64/x
  3. Step 3: Cross multiply
    3,815.50x = 5,723.25 × 1,218.64
  4. Step 4: Simplify right side
    3,815.50x = 6,974,581.38
  5. Step 5: Solve for x
    x = 6,974,581.38/3,815.50
  6. Step 6: Final answer
    x = 1,827.96

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.