Home / 1,261.14-1,892.25-1,153.68

Finding the Fourth Proportional to 1,261.14, 1,892.25 and 1,153.68

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Solution

The fourth proportional to 1,261.14, 1,892.25 and 1,153.68 is: 1,731.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261.14 : 1,892.25 = 1,153.68 : x
  2. Step 2: Convert to fraction form
    1,261.14/1,892.25 = 1,153.68/x
  3. Step 3: Cross multiply
    1,261.14x = 1,892.25 × 1,153.68
  4. Step 4: Simplify right side
    1,261.14x = 2,183,050.98
  5. Step 5: Solve for x
    x = 2,183,050.98/1,261.14
  6. Step 6: Final answer
    x = 1,731.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.