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Finding the Fourth Proportional to 7,400.66, 10,212.76 and 4,043.49

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Solution

The fourth proportional to 7,400.66, 10,212.76 and 4,043.49 is: 5,579.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.66 : 10,212.76 = 4,043.49 : x
  2. Step 2: Convert to fraction form
    7,400.66/10,212.76 = 4,043.49/x
  3. Step 3: Cross multiply
    7,400.66x = 10,212.76 × 4,043.49
  4. Step 4: Simplify right side
    7,400.66x = 41,295,182.82
  5. Step 5: Solve for x
    x = 41,295,182.82/7,400.66
  6. Step 6: Final answer
    x = 5,579.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.