Home / 7,072.15-10,607.79-2,689.51

Finding the Fourth Proportional to 7,072.15, 10,607.79 and 2,689.51

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Solution

The fourth proportional to 7,072.15, 10,607.79 and 2,689.51 is: 4,034.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.15 : 10,607.79 = 2,689.51 : x
  2. Step 2: Convert to fraction form
    7,072.15/10,607.79 = 2,689.51/x
  3. Step 3: Cross multiply
    7,072.15x = 10,607.79 × 2,689.51
  4. Step 4: Simplify right side
    7,072.15x = 28,529,757.28
  5. Step 5: Solve for x
    x = 28,529,757.28/7,072.15
  6. Step 6: Final answer
    x = 4,034.10

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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.