Home / 4,100.22-6,137.78-3,312.90

Finding the Fourth Proportional to 4,100.22, 6,137.78 and 3,312.90

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Solution

The fourth proportional to 4,100.22, 6,137.78 and 3,312.90 is: 4,959.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,100.22 : 6,137.78 = 3,312.90 : x
  2. Step 2: Convert to fraction form
    4,100.22/6,137.78 = 3,312.90/x
  3. Step 3: Cross multiply
    4,100.22x = 6,137.78 × 3,312.90
  4. Step 4: Simplify right side
    4,100.22x = 20,333,834.80
  5. Step 5: Solve for x
    x = 20,333,834.80/4,100.22
  6. Step 6: Final answer
    x = 4,959.21

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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.