Home / 2,438.10-3,656.16-936.90

Finding the Fourth Proportional to 2,438.10, 3,656.16 and 936.90

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Solution

The fourth proportional to 2,438.10, 3,656.16 and 936.90 is: 1,404.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438.10 : 3,656.16 = 936.90 : x
  2. Step 2: Convert to fraction form
    2,438.10/3,656.16 = 936.90/x
  3. Step 3: Cross multiply
    2,438.10x = 3,656.16 × 936.90
  4. Step 4: Simplify right side
    2,438.10x = 3,425,458.94
  5. Step 5: Solve for x
    x = 3,425,458.94/2,438.10
  6. Step 6: Final answer
    x = 1,404.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.