Home / 3,815.49-5,265.27-2,137.05

Finding the Fourth Proportional to 3,815.49, 5,265.27 and 2,137.05

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Solution

The fourth proportional to 3,815.49, 5,265.27 and 2,137.05 is: 2,949.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.49 : 5,265.27 = 2,137.05 : x
  2. Step 2: Convert to fraction form
    3,815.49/5,265.27 = 2,137.05/x
  3. Step 3: Cross multiply
    3,815.49x = 5,265.27 × 2,137.05
  4. Step 4: Simplify right side
    3,815.49x = 11,252,145.25
  5. Step 5: Solve for x
    x = 11,252,145.25/3,815.49
  6. Step 6: Final answer
    x = 2,949.07

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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.