Home / 7,124.09-10,688.56-3,837.51

Finding the Fourth Proportional to 7,124.09, 10,688.56 and 3,837.51

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Solution

The fourth proportional to 7,124.09, 10,688.56 and 3,837.51 is: 5,757.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.09 : 10,688.56 = 3,837.51 : x
  2. Step 2: Convert to fraction form
    7,124.09/10,688.56 = 3,837.51/x
  3. Step 3: Cross multiply
    7,124.09x = 10,688.56 × 3,837.51
  4. Step 4: Simplify right side
    7,124.09x = 41,017,446.29
  5. Step 5: Solve for x
    x = 41,017,446.29/7,124.09
  6. Step 6: Final answer
    x = 5,757.57

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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.