Home / 1,687.24-2,332.74-1,295.56

Finding the Fourth Proportional to 1,687.24, 2,332.74 and 1,295.56

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Solution

The fourth proportional to 1,687.24, 2,332.74 and 1,295.56 is: 1,791.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687.24 : 2,332.74 = 1,295.56 : x
  2. Step 2: Convert to fraction form
    1,687.24/2,332.74 = 1,295.56/x
  3. Step 3: Cross multiply
    1,687.24x = 2,332.74 × 1,295.56
  4. Step 4: Simplify right side
    1,687.24x = 3,022,204.63
  5. Step 5: Solve for x
    x = 3,022,204.63/1,687.24
  6. Step 6: Final answer
    x = 1,791.21

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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.