Home / 5,072.21-7,612.63-2,989.16

Finding the Fourth Proportional to 5,072.21, 7,612.63 and 2,989.16

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Solution

The fourth proportional to 5,072.21, 7,612.63 and 2,989.16 is: 4,486.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.21 : 7,612.63 = 2,989.16 : x
  2. Step 2: Convert to fraction form
    5,072.21/7,612.63 = 2,989.16/x
  3. Step 3: Cross multiply
    5,072.21x = 7,612.63 × 2,989.16
  4. Step 4: Simplify right side
    5,072.21x = 22,755,369.09
  5. Step 5: Solve for x
    x = 22,755,369.09/5,072.21
  6. Step 6: Final answer
    x = 4,486.28

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Why These Related Problems?

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