Home / 2,579.39-3,559.55-1,400.45

Finding the Fourth Proportional to 2,579.39, 3,559.55 and 1,400.45

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Solution

The fourth proportional to 2,579.39, 3,559.55 and 1,400.45 is: 1,932.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.39 : 3,559.55 = 1,400.45 : x
  2. Step 2: Convert to fraction form
    2,579.39/3,559.55 = 1,400.45/x
  3. Step 3: Cross multiply
    2,579.39x = 3,559.55 × 1,400.45
  4. Step 4: Simplify right side
    2,579.39x = 4,984,947.00
  5. Step 5: Solve for x
    x = 4,984,947.00/2,579.39
  6. Step 6: Final answer
    x = 1,932.61

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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.