Home / 3,875.45-5,348.12-2,107.08

Finding the Fourth Proportional to 3,875.45, 5,348.12 and 2,107.08

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Solution

The fourth proportional to 3,875.45, 5,348.12 and 2,107.08 is: 2,907.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.45 : 5,348.12 = 2,107.08 : x
  2. Step 2: Convert to fraction form
    3,875.45/5,348.12 = 2,107.08/x
  3. Step 3: Cross multiply
    3,875.45x = 5,348.12 × 2,107.08
  4. Step 4: Simplify right side
    3,875.45x = 11,268,906.15
  5. Step 5: Solve for x
    x = 11,268,906.15/3,875.45
  6. Step 6: Final answer
    x = 2,907.77

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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.