Home / 3,815.16-5,722.26-1,218.12

Finding the Fourth Proportional to 3,815.16, 5,722.26 and 1,218.12

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Solution

The fourth proportional to 3,815.16, 5,722.26 and 1,218.12 is: 1,827.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.16 : 5,722.26 = 1,218.12 : x
  2. Step 2: Convert to fraction form
    3,815.16/5,722.26 = 1,218.12/x
  3. Step 3: Cross multiply
    3,815.16x = 5,722.26 × 1,218.12
  4. Step 4: Simplify right side
    3,815.16x = 6,970,399.35
  5. Step 5: Solve for x
    x = 6,970,399.35/3,815.16
  6. Step 6: Final answer
    x = 1,827.03

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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.