Home / 3,713.74-5,124.73-2,120.57

Finding the Fourth Proportional to 3,713.74, 5,124.73 and 2,120.57

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Solution

The fourth proportional to 3,713.74, 5,124.73 and 2,120.57 is: 2,926.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.74 : 5,124.73 = 2,120.57 : x
  2. Step 2: Convert to fraction form
    3,713.74/5,124.73 = 2,120.57/x
  3. Step 3: Cross multiply
    3,713.74x = 5,124.73 × 2,120.57
  4. Step 4: Simplify right side
    3,713.74x = 10,867,348.70
  5. Step 5: Solve for x
    x = 10,867,348.70/3,713.74
  6. Step 6: Final answer
    x = 2,926.25

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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.