Home / 3,126.69-4,688.66-1,665.53

Finding the Fourth Proportional to 3,126.69, 4,688.66 and 1,665.53

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Solution

The fourth proportional to 3,126.69, 4,688.66 and 1,665.53 is: 2,497.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.69 : 4,688.66 = 1,665.53 : x
  2. Step 2: Convert to fraction form
    3,126.69/4,688.66 = 1,665.53/x
  3. Step 3: Cross multiply
    3,126.69x = 4,688.66 × 1,665.53
  4. Step 4: Simplify right side
    3,126.69x = 7,809,095.56
  5. Step 5: Solve for x
    x = 7,809,095.56/3,126.69
  6. Step 6: Final answer
    x = 2,497.56

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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.