Home / 1,963.03-2,707.86-1,225.75

Finding the Fourth Proportional to 1,963.03, 2,707.86 and 1,225.75

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Solution

The fourth proportional to 1,963.03, 2,707.86 and 1,225.75 is: 1,690.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,963.03 : 2,707.86 = 1,225.75 : x
  2. Step 2: Convert to fraction form
    1,963.03/2,707.86 = 1,225.75/x
  3. Step 3: Cross multiply
    1,963.03x = 2,707.86 × 1,225.75
  4. Step 4: Simplify right side
    1,963.03x = 3,319,153.27
  5. Step 5: Solve for x
    x = 3,319,153.27/1,963.03
  6. Step 6: Final answer
    x = 1,690.83

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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.