Home / 3,815.37-5,723.06-1,218.51

Finding the Fourth Proportional to 3,815.37, 5,723.06 and 1,218.51

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Solution

The fourth proportional to 3,815.37, 5,723.06 and 1,218.51 is: 1,827.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.37 : 5,723.06 = 1,218.51 : x
  2. Step 2: Convert to fraction form
    3,815.37/5,723.06 = 1,218.51/x
  3. Step 3: Cross multiply
    3,815.37x = 5,723.06 × 1,218.51
  4. Step 4: Simplify right side
    3,815.37x = 6,973,599.75
  5. Step 5: Solve for x
    x = 6,973,599.75/3,815.37
  6. Step 6: Final answer
    x = 1,827.77

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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.