Home / 4,140.75-5,711.23-2,628.76

Finding the Fourth Proportional to 4,140.75, 5,711.23 and 2,628.76

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Solution

The fourth proportional to 4,140.75, 5,711.23 and 2,628.76 is: 3,625.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.75 : 5,711.23 = 2,628.76 : x
  2. Step 2: Convert to fraction form
    4,140.75/5,711.23 = 2,628.76/x
  3. Step 3: Cross multiply
    4,140.75x = 5,711.23 × 2,628.76
  4. Step 4: Simplify right side
    4,140.75x = 15,013,452.97
  5. Step 5: Solve for x
    x = 15,013,452.97/4,140.75
  6. Step 6: Final answer
    x = 3,625.78

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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.