Home / 4,189.40-6,278.70-2,544.20

Finding the Fourth Proportional to 4,189.40, 6,278.70 and 2,544.20

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Solution

The fourth proportional to 4,189.40, 6,278.70 and 2,544.20 is: 3,813.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.40 : 6,278.70 = 2,544.20 : x
  2. Step 2: Convert to fraction form
    4,189.40/6,278.70 = 2,544.20/x
  3. Step 3: Cross multiply
    4,189.40x = 6,278.70 × 2,544.20
  4. Step 4: Simplify right side
    4,189.40x = 15,974,268.54
  5. Step 5: Solve for x
    x = 15,974,268.54/4,189.40
  6. Step 6: Final answer
    x = 3,813.02

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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.