Home / 2,179.38-3,268.98-946.68

Finding the Fourth Proportional to 2,179.38, 3,268.98 and 946.68

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Solution

The fourth proportional to 2,179.38, 3,268.98 and 946.68 is: 1,419.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.38 : 3,268.98 = 946.68 : x
  2. Step 2: Convert to fraction form
    2,179.38/3,268.98 = 946.68/x
  3. Step 3: Cross multiply
    2,179.38x = 3,268.98 × 946.68
  4. Step 4: Simplify right side
    2,179.38x = 3,094,677.99
  5. Step 5: Solve for x
    x = 3,094,677.99/2,179.38
  6. Step 6: Final answer
    x = 1,419.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.