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Finding the Fourth Proportional to 7,431.10, 10,254.89 and 4,074.05

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Solution

The fourth proportional to 7,431.10, 10,254.89 and 4,074.05 is: 5,622.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.10 : 10,254.89 = 4,074.05 : x
  2. Step 2: Convert to fraction form
    7,431.10/10,254.89 = 4,074.05/x
  3. Step 3: Cross multiply
    7,431.10x = 10,254.89 × 4,074.05
  4. Step 4: Simplify right side
    7,431.10x = 41,778,970.43
  5. Step 5: Solve for x
    x = 41,778,970.43/7,431.10
  6. Step 6: Final answer
    x = 5,622.18

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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.