Home / 5,517.40-8,265.67-4,278.75

Finding the Fourth Proportional to 5,517.40, 8,265.67 and 4,278.75

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Solution

The fourth proportional to 5,517.40, 8,265.67 and 4,278.75 is: 6,410.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.40 : 8,265.67 = 4,278.75 : x
  2. Step 2: Convert to fraction form
    5,517.40/8,265.67 = 4,278.75/x
  3. Step 3: Cross multiply
    5,517.40x = 8,265.67 × 4,278.75
  4. Step 4: Simplify right side
    5,517.40x = 35,366,735.51
  5. Step 5: Solve for x
    x = 35,366,735.51/5,517.40
  6. Step 6: Final answer
    x = 6,410.04

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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.