Home / 1,708.23-2,359.32-1,121.37

Finding the Fourth Proportional to 1,708.23, 2,359.32 and 1,121.37

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Solution

The fourth proportional to 1,708.23, 2,359.32 and 1,121.37 is: 1,548.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,708.23 : 2,359.32 = 1,121.37 : x
  2. Step 2: Convert to fraction form
    1,708.23/2,359.32 = 1,121.37/x
  3. Step 3: Cross multiply
    1,708.23x = 2,359.32 × 1,121.37
  4. Step 4: Simplify right side
    1,708.23x = 2,645,670.67
  5. Step 5: Solve for x
    x = 2,645,670.67/1,708.23
  6. Step 6: Final answer
    x = 1,548.78

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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.