Home / 2,438.07-3,658.32-1,139.37

Finding the Fourth Proportional to 2,438.07, 3,658.32 and 1,139.37

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Solution

The fourth proportional to 2,438.07, 3,658.32 and 1,139.37 is: 1,709.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438.07 : 3,658.32 = 1,139.37 : x
  2. Step 2: Convert to fraction form
    2,438.07/3,658.32 = 1,139.37/x
  3. Step 3: Cross multiply
    2,438.07x = 3,658.32 × 1,139.37
  4. Step 4: Simplify right side
    2,438.07x = 4,168,180.06
  5. Step 5: Solve for x
    x = 4,168,180.06/2,438.07
  6. Step 6: Final answer
    x = 1,709.62

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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.