Home / 3,631.90-5,435.70-3,340.30

Finding the Fourth Proportional to 3,631.90, 5,435.70 and 3,340.30

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Solution

The fourth proportional to 3,631.90, 5,435.70 and 3,340.30 is: 4,999.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.90 : 5,435.70 = 3,340.30 : x
  2. Step 2: Convert to fraction form
    3,631.90/5,435.70 = 3,340.30/x
  3. Step 3: Cross multiply
    3,631.90x = 5,435.70 × 3,340.30
  4. Step 4: Simplify right side
    3,631.90x = 18,156,868.71
  5. Step 5: Solve for x
    x = 18,156,868.71/3,631.90
  6. Step 6: Final answer
    x = 4,999.28

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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.