Home / 3,186.62-4,387.15-2,513.21

Finding the Fourth Proportional to 3,186.62, 4,387.15 and 2,513.21

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Solution

The fourth proportional to 3,186.62, 4,387.15 and 2,513.21 is: 3,460.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.62 : 4,387.15 = 2,513.21 : x
  2. Step 2: Convert to fraction form
    3,186.62/4,387.15 = 2,513.21/x
  3. Step 3: Cross multiply
    3,186.62x = 4,387.15 × 2,513.21
  4. Step 4: Simplify right side
    3,186.62x = 11,025,829.25
  5. Step 5: Solve for x
    x = 11,025,829.25/3,186.62
  6. Step 6: Final answer
    x = 3,460.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.