Home / 4,911.40-7,362.06-2,135.80

Finding the Fourth Proportional to 4,911.40, 7,362.06 and 2,135.80

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Solution

The fourth proportional to 4,911.40, 7,362.06 and 2,135.80 is: 3,201.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.40 : 7,362.06 = 2,135.80 : x
  2. Step 2: Convert to fraction form
    4,911.40/7,362.06 = 2,135.80/x
  3. Step 3: Cross multiply
    4,911.40x = 7,362.06 × 2,135.80
  4. Step 4: Simplify right side
    4,911.40x = 15,723,887.75
  5. Step 5: Solve for x
    x = 15,723,887.75/4,911.40
  6. Step 6: Final answer
    x = 3,201.51

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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.