Home / 7,108.49-10,664.09-2,428.31

Finding the Fourth Proportional to 7,108.49, 10,664.09 and 2,428.31

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Solution

The fourth proportional to 7,108.49, 10,664.09 and 2,428.31 is: 3,642.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.49 : 10,664.09 = 2,428.31 : x
  2. Step 2: Convert to fraction form
    7,108.49/10,664.09 = 2,428.31/x
  3. Step 3: Cross multiply
    7,108.49x = 10,664.09 × 2,428.31
  4. Step 4: Simplify right side
    7,108.49x = 25,895,716.39
  5. Step 5: Solve for x
    x = 25,895,716.39/7,108.49
  6. Step 6: Final answer
    x = 3,642.93

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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.