Home / 1,707.44-2,353.56-1,292.72

Finding the Fourth Proportional to 1,707.44, 2,353.56 and 1,292.72

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Solution

The fourth proportional to 1,707.44, 2,353.56 and 1,292.72 is: 1,781.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.44 : 2,353.56 = 1,292.72 : x
  2. Step 2: Convert to fraction form
    1,707.44/2,353.56 = 1,292.72/x
  3. Step 3: Cross multiply
    1,707.44x = 2,353.56 × 1,292.72
  4. Step 4: Simplify right side
    1,707.44x = 3,042,494.08
  5. Step 5: Solve for x
    x = 3,042,494.08/1,707.44
  6. Step 6: Final answer
    x = 1,781.90

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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.