Home / 2,558.85-3,531.32-1,439.79

Finding the Fourth Proportional to 2,558.85, 3,531.32 and 1,439.79

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Solution

The fourth proportional to 2,558.85, 3,531.32 and 1,439.79 is: 1,986.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.85 : 3,531.32 = 1,439.79 : x
  2. Step 2: Convert to fraction form
    2,558.85/3,531.32 = 1,439.79/x
  3. Step 3: Cross multiply
    2,558.85x = 3,531.32 × 1,439.79
  4. Step 4: Simplify right side
    2,558.85x = 5,084,359.22
  5. Step 5: Solve for x
    x = 5,084,359.22/2,558.85
  6. Step 6: Final answer
    x = 1,986.97

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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.