Home / 5,237.85-7,227.91-2,999.21

Finding the Fourth Proportional to 5,237.85, 7,227.91 and 2,999.21

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Solution

The fourth proportional to 5,237.85, 7,227.91 and 2,999.21 is: 4,138.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237.85 : 7,227.91 = 2,999.21 : x
  2. Step 2: Convert to fraction form
    5,237.85/7,227.91 = 2,999.21/x
  3. Step 3: Cross multiply
    5,237.85x = 7,227.91 × 2,999.21
  4. Step 4: Simplify right side
    5,237.85x = 21,678,019.78
  5. Step 5: Solve for x
    x = 21,678,019.78/5,237.85
  6. Step 6: Final answer
    x = 4,138.73

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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.