Home / 3,622.72-4,999.41-2,130.67

Finding the Fourth Proportional to 3,622.72, 4,999.41 and 2,130.67

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Solution

The fourth proportional to 3,622.72, 4,999.41 and 2,130.67 is: 2,940.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.72 : 4,999.41 = 2,130.67 : x
  2. Step 2: Convert to fraction form
    3,622.72/4,999.41 = 2,130.67/x
  3. Step 3: Cross multiply
    3,622.72x = 4,999.41 × 2,130.67
  4. Step 4: Simplify right side
    3,622.72x = 10,652,092.90
  5. Step 5: Solve for x
    x = 10,652,092.90/3,622.72
  6. Step 6: Final answer
    x = 2,940.36

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1.5x scale

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.