Home / 3,579.39-4,940.90-2,087.77

Finding the Fourth Proportional to 3,579.39, 4,940.90 and 2,087.77

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Solution

The fourth proportional to 3,579.39, 4,940.90 and 2,087.77 is: 2,881.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.39 : 4,940.90 = 2,087.77 : x
  2. Step 2: Convert to fraction form
    3,579.39/4,940.90 = 2,087.77/x
  3. Step 3: Cross multiply
    3,579.39x = 4,940.90 × 2,087.77
  4. Step 4: Simplify right side
    3,579.39x = 10,315,462.79
  5. Step 5: Solve for x
    x = 10,315,462.79/3,579.39
  6. Step 6: Final answer
    x = 2,881.91

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1.5x scale

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.