Home / 2,558.81-3,839.12-1,261.19

Finding the Fourth Proportional to 2,558.81, 3,839.12 and 1,261.19

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Solution

The fourth proportional to 2,558.81, 3,839.12 and 1,261.19 is: 1,892.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.81 : 3,839.12 = 1,261.19 : x
  2. Step 2: Convert to fraction form
    2,558.81/3,839.12 = 1,261.19/x
  3. Step 3: Cross multiply
    2,558.81x = 3,839.12 × 1,261.19
  4. Step 4: Simplify right side
    2,558.81x = 4,841,867.77
  5. Step 5: Solve for x
    x = 4,841,867.77/2,558.81
  6. Step 6: Final answer
    x = 1,892.23

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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.