Home / 3,105.40-4,658.10-2,935.30

Finding the Fourth Proportional to 3,105.40, 4,658.10 and 2,935.30

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Solution

The fourth proportional to 3,105.40, 4,658.10 and 2,935.30 is: 4,402.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.40 : 4,658.10 = 2,935.30 : x
  2. Step 2: Convert to fraction form
    3,105.40/4,658.10 = 2,935.30/x
  3. Step 3: Cross multiply
    3,105.40x = 4,658.10 × 2,935.30
  4. Step 4: Simplify right side
    3,105.40x = 13,672,920.93
  5. Step 5: Solve for x
    x = 13,672,920.93/3,105.40
  6. Step 6: Final answer
    x = 4,402.95

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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.