Home / 1,962.80-2,707.26-1,263.50

Finding the Fourth Proportional to 1,962.80, 2,707.26 and 1,263.50

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Solution

The fourth proportional to 1,962.80, 2,707.26 and 1,263.50 is: 1,742.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.80 : 2,707.26 = 1,263.50 : x
  2. Step 2: Convert to fraction form
    1,962.80/2,707.26 = 1,263.50/x
  3. Step 3: Cross multiply
    1,962.80x = 2,707.26 × 1,263.50
  4. Step 4: Simplify right side
    1,962.80x = 3,420,623.01
  5. Step 5: Solve for x
    x = 3,420,623.01/1,962.80
  6. Step 6: Final answer
    x = 1,742.73

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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.