Home / 3,965.04-5,471.70-2,286.45

Finding the Fourth Proportional to 3,965.04, 5,471.70 and 2,286.45

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Solution

The fourth proportional to 3,965.04, 5,471.70 and 2,286.45 is: 3,155.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.04 : 5,471.70 = 2,286.45 : x
  2. Step 2: Convert to fraction form
    3,965.04/5,471.70 = 2,286.45/x
  3. Step 3: Cross multiply
    3,965.04x = 5,471.70 × 2,286.45
  4. Step 4: Simplify right side
    3,965.04x = 12,510,768.47
  5. Step 5: Solve for x
    x = 12,510,768.47/3,965.04
  6. Step 6: Final answer
    x = 3,155.27

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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.