Home / 3,156.03-4,355.41-1,811.75

Finding the Fourth Proportional to 3,156.03, 4,355.41 and 1,811.75

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Solution

The fourth proportional to 3,156.03, 4,355.41 and 1,811.75 is: 2,500.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.03 : 4,355.41 = 1,811.75 : x
  2. Step 2: Convert to fraction form
    3,156.03/4,355.41 = 1,811.75/x
  3. Step 3: Cross multiply
    3,156.03x = 4,355.41 × 1,811.75
  4. Step 4: Simplify right side
    3,156.03x = 7,890,920.43
  5. Step 5: Solve for x
    x = 7,890,920.43/3,156.03
  6. Step 6: Final answer
    x = 2,500.27

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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.