Home / 3,612.77-4,987.91-2,771.87

Finding the Fourth Proportional to 3,612.77, 4,987.91 and 2,771.87

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Solution

The fourth proportional to 3,612.77, 4,987.91 and 2,771.87 is: 3,826.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.77 : 4,987.91 = 2,771.87 : x
  2. Step 2: Convert to fraction form
    3,612.77/4,987.91 = 2,771.87/x
  3. Step 3: Cross multiply
    3,612.77x = 4,987.91 × 2,771.87
  4. Step 4: Simplify right side
    3,612.77x = 13,825,857.49
  5. Step 5: Solve for x
    x = 13,825,857.49/3,612.77
  6. Step 6: Final answer
    x = 3,826.95

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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.