Home / 3,942.38-5,437.90-2,429.16

Finding the Fourth Proportional to 3,942.38, 5,437.90 and 2,429.16

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Solution

The fourth proportional to 3,942.38, 5,437.90 and 2,429.16 is: 3,350.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.38 : 5,437.90 = 2,429.16 : x
  2. Step 2: Convert to fraction form
    3,942.38/5,437.90 = 2,429.16/x
  3. Step 3: Cross multiply
    3,942.38x = 5,437.90 × 2,429.16
  4. Step 4: Simplify right side
    3,942.38x = 13,209,529.16
  5. Step 5: Solve for x
    x = 13,209,529.16/3,942.38
  6. Step 6: Final answer
    x = 3,350.65

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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.