Home / 3,875.45-5,348.14-2,107.05

Finding the Fourth Proportional to 3,875.45, 5,348.14 and 2,107.05

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Solution

The fourth proportional to 3,875.45, 5,348.14 and 2,107.05 is: 2,907.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.45 : 5,348.14 = 2,107.05 : x
  2. Step 2: Convert to fraction form
    3,875.45/5,348.14 = 2,107.05/x
  3. Step 3: Cross multiply
    3,875.45x = 5,348.14 × 2,107.05
  4. Step 4: Simplify right side
    3,875.45x = 11,268,830.04
  5. Step 5: Solve for x
    x = 11,268,830.04/3,875.45
  6. Step 6: Final answer
    x = 2,907.74

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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.