Home / 3,875.39-5,348.25-2,106.95

Finding the Fourth Proportional to 3,875.39, 5,348.25 and 2,106.95

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Solution

The fourth proportional to 3,875.39, 5,348.25 and 2,106.95 is: 2,907.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.39 : 5,348.25 = 2,106.95 : x
  2. Step 2: Convert to fraction form
    3,875.39/5,348.25 = 2,106.95/x
  3. Step 3: Cross multiply
    3,875.39x = 5,348.25 × 2,106.95
  4. Step 4: Simplify right side
    3,875.39x = 11,268,508.71
  5. Step 5: Solve for x
    x = 11,268,508.71/3,875.39
  6. Step 6: Final answer
    x = 2,907.71

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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.