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Finding the Fourth Proportional to 3,061.44, 4,230.99 and 2,315.16

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Solution

The fourth proportional to 3,061.44, 4,230.99 and 2,315.16 is: 3,199.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,061.44 : 4,230.99 = 2,315.16 : x
  2. Step 2: Convert to fraction form
    3,061.44/4,230.99 = 2,315.16/x
  3. Step 3: Cross multiply
    3,061.44x = 4,230.99 × 2,315.16
  4. Step 4: Simplify right side
    3,061.44x = 9,795,418.81
  5. Step 5: Solve for x
    x = 9,795,418.81/3,061.44
  6. Step 6: Final answer
    x = 3,199.61

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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.