Home / 1,261.92-1,739.20-1,014.08

Finding the Fourth Proportional to 1,261.92, 1,739.20 and 1,014.08

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Solution

The fourth proportional to 1,261.92, 1,739.20 and 1,014.08 is: 1,397.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261.92 : 1,739.20 = 1,014.08 : x
  2. Step 2: Convert to fraction form
    1,261.92/1,739.20 = 1,014.08/x
  3. Step 3: Cross multiply
    1,261.92x = 1,739.20 × 1,014.08
  4. Step 4: Simplify right side
    1,261.92x = 1,763,687.94
  5. Step 5: Solve for x
    x = 1,763,687.94/1,261.92
  6. Step 6: Final answer
    x = 1,397.62

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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.