Home / 5,123.40-7,067.70-3,944.04

Finding the Fourth Proportional to 5,123.40, 7,067.70 and 3,944.04

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Solution

The fourth proportional to 5,123.40, 7,067.70 and 3,944.04 is: 5,440.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,123.40 : 7,067.70 = 3,944.04 : x
  2. Step 2: Convert to fraction form
    5,123.40/7,067.70 = 3,944.04/x
  3. Step 3: Cross multiply
    5,123.40x = 7,067.70 × 3,944.04
  4. Step 4: Simplify right side
    5,123.40x = 27,875,291.51
  5. Step 5: Solve for x
    x = 27,875,291.51/5,123.40
  6. Step 6: Final answer
    x = 5,440.78

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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.