Home / 2,579.77-3,560.12-1,400.86

Finding the Fourth Proportional to 2,579.77, 3,560.12 and 1,400.86

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Solution

The fourth proportional to 2,579.77, 3,560.12 and 1,400.86 is: 1,933.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.77 : 3,560.12 = 1,400.86 : x
  2. Step 2: Convert to fraction form
    2,579.77/3,560.12 = 1,400.86/x
  3. Step 3: Cross multiply
    2,579.77x = 3,560.12 × 1,400.86
  4. Step 4: Simplify right side
    2,579.77x = 4,987,229.70
  5. Step 5: Solve for x
    x = 4,987,229.70/2,579.77
  6. Step 6: Final answer
    x = 1,933.21

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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.