Home / 3,435.90-5,155.20-2,049.90

Finding the Fourth Proportional to 3,435.90, 5,155.20 and 2,049.90

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Solution

The fourth proportional to 3,435.90, 5,155.20 and 2,049.90 is: 3,075.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435.90 : 5,155.20 = 2,049.90 : x
  2. Step 2: Convert to fraction form
    3,435.90/5,155.20 = 2,049.90/x
  3. Step 3: Cross multiply
    3,435.90x = 5,155.20 × 2,049.90
  4. Step 4: Simplify right side
    3,435.90x = 10,567,644.48
  5. Step 5: Solve for x
    x = 10,567,644.48/3,435.90
  6. Step 6: Final answer
    x = 3,075.66

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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.