Home / 3,115.39-4,676.73-2,187.13

Finding the Fourth Proportional to 3,115.39, 4,676.73 and 2,187.13

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Solution

The fourth proportional to 3,115.39, 4,676.73 and 2,187.13 is: 3,283.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.39 : 4,676.73 = 2,187.13 : x
  2. Step 2: Convert to fraction form
    3,115.39/4,676.73 = 2,187.13/x
  3. Step 3: Cross multiply
    3,115.39x = 4,676.73 × 2,187.13
  4. Step 4: Simplify right side
    3,115.39x = 10,228,616.48
  5. Step 5: Solve for x
    x = 10,228,616.48/3,115.39
  6. Step 6: Final answer
    x = 3,283.25

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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.