Home / 3,815.39-5,723.29-1,218.13

Finding the Fourth Proportional to 3,815.39, 5,723.29 and 1,218.13

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Solution

The fourth proportional to 3,815.39, 5,723.29 and 1,218.13 is: 1,827.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.39 : 5,723.29 = 1,218.13 : x
  2. Step 2: Convert to fraction form
    3,815.39/5,723.29 = 1,218.13/x
  3. Step 3: Cross multiply
    3,815.39x = 5,723.29 × 1,218.13
  4. Step 4: Simplify right side
    3,815.39x = 6,971,711.25
  5. Step 5: Solve for x
    x = 6,971,711.25/3,815.39
  6. Step 6: Final answer
    x = 1,827.26

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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.