Home / 3,854.34-5,318.92-2,152.75

Finding the Fourth Proportional to 3,854.34, 5,318.92 and 2,152.75

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Solution

The fourth proportional to 3,854.34, 5,318.92 and 2,152.75 is: 2,970.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.34 : 5,318.92 = 2,152.75 : x
  2. Step 2: Convert to fraction form
    3,854.34/5,318.92 = 2,152.75/x
  3. Step 3: Cross multiply
    3,854.34x = 5,318.92 × 2,152.75
  4. Step 4: Simplify right side
    3,854.34x = 11,450,305.03
  5. Step 5: Solve for x
    x = 11,450,305.03/3,854.34
  6. Step 6: Final answer
    x = 2,970.76

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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.