Home / 3,181.39-4,387.29-2,435.38

Finding the Fourth Proportional to 3,181.39, 4,387.29 and 2,435.38

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Solution

The fourth proportional to 3,181.39, 4,387.29 and 2,435.38 is: 3,358.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.39 : 4,387.29 = 2,435.38 : x
  2. Step 2: Convert to fraction form
    3,181.39/4,387.29 = 2,435.38/x
  3. Step 3: Cross multiply
    3,181.39x = 4,387.29 × 2,435.38
  4. Step 4: Simplify right side
    3,181.39x = 10,684,718.32
  5. Step 5: Solve for x
    x = 10,684,718.32/3,181.39
  6. Step 6: Final answer
    x = 3,358.51

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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.