Home / 3,815.24-5,723.74-1,218.16

Finding the Fourth Proportional to 3,815.24, 5,723.74 and 1,218.16

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Solution

The fourth proportional to 3,815.24, 5,723.74 and 1,218.16 is: 1,827.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.24 : 5,723.74 = 1,218.16 : x
  2. Step 2: Convert to fraction form
    3,815.24/5,723.74 = 1,218.16/x
  3. Step 3: Cross multiply
    3,815.24x = 5,723.74 × 1,218.16
  4. Step 4: Simplify right side
    3,815.24x = 6,972,431.12
  5. Step 5: Solve for x
    x = 6,972,431.12/3,815.24
  6. Step 6: Final answer
    x = 1,827.52

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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.