Home / 7,440.76-11,149.06-3,930.58

Finding the Fourth Proportional to 7,440.76, 11,149.06 and 3,930.58

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Solution

The fourth proportional to 7,440.76, 11,149.06 and 3,930.58 is: 5,889.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,440.76 : 11,149.06 = 3,930.58 : x
  2. Step 2: Convert to fraction form
    7,440.76/11,149.06 = 3,930.58/x
  3. Step 3: Cross multiply
    7,440.76x = 11,149.06 × 3,930.58
  4. Step 4: Simplify right side
    7,440.76x = 43,822,272.25
  5. Step 5: Solve for x
    x = 43,822,272.25/7,440.76
  6. Step 6: Final answer
    x = 5,889.49

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1.5x scale

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.