Home / 2,242.81-3,364.31-1,261.90

Finding the Fourth Proportional to 2,242.81, 3,364.31 and 1,261.90

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Solution

The fourth proportional to 2,242.81, 3,364.31 and 1,261.90 is: 1,892.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,242.81 : 3,364.31 = 1,261.90 : x
  2. Step 2: Convert to fraction form
    2,242.81/3,364.31 = 1,261.90/x
  3. Step 3: Cross multiply
    2,242.81x = 3,364.31 × 1,261.90
  4. Step 4: Simplify right side
    2,242.81x = 4,245,422.79
  5. Step 5: Solve for x
    x = 4,245,422.79/2,242.81
  6. Step 6: Final answer
    x = 1,892.90

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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.