Home / 7,211.48-9,949.56-4,227.80

Finding the Fourth Proportional to 7,211.48, 9,949.56 and 4,227.80

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Solution

The fourth proportional to 7,211.48, 9,949.56 and 4,227.80 is: 5,833.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.48 : 9,949.56 = 4,227.80 : x
  2. Step 2: Convert to fraction form
    7,211.48/9,949.56 = 4,227.80/x
  3. Step 3: Cross multiply
    7,211.48x = 9,949.56 × 4,227.80
  4. Step 4: Simplify right side
    7,211.48x = 42,064,749.77
  5. Step 5: Solve for x
    x = 42,064,749.77/7,211.48
  6. Step 6: Final answer
    x = 5,833.03

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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.