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Finding the Fourth Proportional to 5,173.68, 7,141.24 and 3,518.64

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Solution

The fourth proportional to 5,173.68, 7,141.24 and 3,518.64 is: 4,856.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173.68 : 7,141.24 = 3,518.64 : x
  2. Step 2: Convert to fraction form
    5,173.68/7,141.24 = 3,518.64/x
  3. Step 3: Cross multiply
    5,173.68x = 7,141.24 × 3,518.64
  4. Step 4: Simplify right side
    5,173.68x = 25,127,452.71
  5. Step 5: Solve for x
    x = 25,127,452.71/5,173.68
  6. Step 6: Final answer
    x = 4,856.79

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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.