Home / 3,929.50-5,421.49-2,603.94

Finding the Fourth Proportional to 3,929.50, 5,421.49 and 2,603.94

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Solution

The fourth proportional to 3,929.50, 5,421.49 and 2,603.94 is: 3,592.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.50 : 5,421.49 = 2,603.94 : x
  2. Step 2: Convert to fraction form
    3,929.50/5,421.49 = 2,603.94/x
  3. Step 3: Cross multiply
    3,929.50x = 5,421.49 × 2,603.94
  4. Step 4: Simplify right side
    3,929.50x = 14,117,234.67
  5. Step 5: Solve for x
    x = 14,117,234.67/3,929.50
  6. Step 6: Final answer
    x = 3,592.63

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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.