Home / 1,224.14-1,688.97-1,162.58

Finding the Fourth Proportional to 1,224.14, 1,688.97 and 1,162.58

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Solution

The fourth proportional to 1,224.14, 1,688.97 and 1,162.58 is: 1,604.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.14 : 1,688.97 = 1,162.58 : x
  2. Step 2: Convert to fraction form
    1,224.14/1,688.97 = 1,162.58/x
  3. Step 3: Cross multiply
    1,224.14x = 1,688.97 × 1,162.58
  4. Step 4: Simplify right side
    1,224.14x = 1,963,562.74
  5. Step 5: Solve for x
    x = 1,963,562.74/1,224.14
  6. Step 6: Final answer
    x = 1,604.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.