Home / 4,121.25-5,677.29-3,125.57

Finding the Fourth Proportional to 4,121.25, 5,677.29 and 3,125.57

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Solution

The fourth proportional to 4,121.25, 5,677.29 and 3,125.57 is: 4,305.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.25 : 5,677.29 = 3,125.57 : x
  2. Step 2: Convert to fraction form
    4,121.25/5,677.29 = 3,125.57/x
  3. Step 3: Cross multiply
    4,121.25x = 5,677.29 × 3,125.57
  4. Step 4: Simplify right side
    4,121.25x = 17,744,738.92
  5. Step 5: Solve for x
    x = 17,744,738.92/4,121.25
  6. Step 6: Final answer
    x = 4,305.67

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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.