Home / 3,828.34-5,281.95-2,149.57

Finding the Fourth Proportional to 3,828.34, 5,281.95 and 2,149.57

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Solution

The fourth proportional to 3,828.34, 5,281.95 and 2,149.57 is: 2,965.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.34 : 5,281.95 = 2,149.57 : x
  2. Step 2: Convert to fraction form
    3,828.34/5,281.95 = 2,149.57/x
  3. Step 3: Cross multiply
    3,828.34x = 5,281.95 × 2,149.57
  4. Step 4: Simplify right side
    3,828.34x = 11,353,921.26
  5. Step 5: Solve for x
    x = 11,353,921.26/3,828.34
  6. Step 6: Final answer
    x = 2,965.76

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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.