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Finding the Fourth Proportional to 7,430.92, 11,131.92 and 4,134.02

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Solution

The fourth proportional to 7,430.92, 11,131.92 and 4,134.02 is: 6,192.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,430.92 : 11,131.92 = 4,134.02 : x
  2. Step 2: Convert to fraction form
    7,430.92/11,131.92 = 4,134.02/x
  3. Step 3: Cross multiply
    7,430.92x = 11,131.92 × 4,134.02
  4. Step 4: Simplify right side
    7,430.92x = 46,019,579.92
  5. Step 5: Solve for x
    x = 46,019,579.92/7,430.92
  6. Step 6: Final answer
    x = 6,192.99

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.