Home / 2,438.22-3,658.95-1,139.79

Finding the Fourth Proportional to 2,438.22, 3,658.95 and 1,139.79

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Solution

The fourth proportional to 2,438.22, 3,658.95 and 1,139.79 is: 1,710.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438.22 : 3,658.95 = 1,139.79 : x
  2. Step 2: Convert to fraction form
    2,438.22/3,658.95 = 1,139.79/x
  3. Step 3: Cross multiply
    2,438.22x = 3,658.95 × 1,139.79
  4. Step 4: Simplify right side
    2,438.22x = 4,170,434.62
  5. Step 5: Solve for x
    x = 4,170,434.62/2,438.22
  6. Step 6: Final answer
    x = 1,710.44

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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.