Home / 2,558.34-3,836.93-1,242.05

Finding the Fourth Proportional to 2,558.34, 3,836.93 and 1,242.05

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Solution

The fourth proportional to 2,558.34, 3,836.93 and 1,242.05 is: 1,862.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.34 : 3,836.93 = 1,242.05 : x
  2. Step 2: Convert to fraction form
    2,558.34/3,836.93 = 1,242.05/x
  3. Step 3: Cross multiply
    2,558.34x = 3,836.93 × 1,242.05
  4. Step 4: Simplify right side
    2,558.34x = 4,765,633.51
  5. Step 5: Solve for x
    x = 4,765,633.51/2,558.34
  6. Step 6: Final answer
    x = 1,862.78

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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.