Home / 3,970.34-5,473.40-2,850.92

Finding the Fourth Proportional to 3,970.34, 5,473.40 and 2,850.92

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Solution

The fourth proportional to 3,970.34, 5,473.40 and 2,850.92 is: 3,930.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.34 : 5,473.40 = 2,850.92 : x
  2. Step 2: Convert to fraction form
    3,970.34/5,473.40 = 2,850.92/x
  3. Step 3: Cross multiply
    3,970.34x = 5,473.40 × 2,850.92
  4. Step 4: Simplify right side
    3,970.34x = 15,604,183.91
  5. Step 5: Solve for x
    x = 15,604,183.91/3,970.34
  6. Step 6: Final answer
    x = 3,930.19

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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.